Mercedes-Benz C-Class VS Audi A6
Mercedes-Benz C-Class
Likes
- Luxurious finishes
- Upmarket and intuitive tech
- Precise handling
Dislikes
- On the compact side for size
- Low-ground clearance may grind the teeth
- Dynamic guidelines are trippy
Audi A6
Likes
- Performance
- Quality
- Safety
Dislikes
- Clinical personality
- Warranty
- Steering feel
Summary
Mercedes-Benz C-Class
When it comes to choosing a family car, sedans are often overlooked for their long-legged wagon or beefy SUV cousins.
They're a bit of a forgotten hero but they'll always hold a piece of my heart for their practicality and (often) sexier kerb-side appeal.
If you can get used to your body cracking like a glow stick when you get in and out of them, the sedan may make a comeback!
The new Mercedes-Benz C-Class, in entry-level C200 form, has definitely tempted my family to consider a sedan in the future – it looks stately and refined but the driving experience also makes it fun.
Let's see what else it did right and if there was anything that could be improved.
Did I mention, I'm fond of sedans... ?
| Safety rating | |
|---|---|
| Engine Type | 1.5L turbo |
| Fuel Type | Hybrid with Premium Unleaded |
| Fuel Efficiency | 6.9L/100km |
| Seating | 5 seats |
Audi A6
Despite a determined bid for dominance by a growing stream of Q-badged SUVs, with zero-emission Es on the near horizon, Audi’s A-team of mainstream sedans, wagons, coupes, and cabriolets remains vitally important to the company’s product portfolio and bottom line.
But in recent years the Bavarian maker’s mid-size A6 has been hiding in the shadows, unable to lay a glove on its natural enemies, the BMW 5 Series and Merc’s E-Class, in terms of new car sales in Australia.
So, this sizeable piece of fresh metal is designed to push Audi up the leader board. It’s the all-new, fifth generation A6.
| Safety rating | |
|---|---|
| Engine Type | 3.0L turbo |
| Fuel Type | Premium Unleaded Petrol |
| Fuel Efficiency | 7.2L/100km |
| Seating | 5 seats |
Verdict
Mercedes-Benz C-Class8/10
The Mercedes-Benz C-Class C200 is such a stylish sedan and I would totally have one. The driving performance, luxurious features and practical size made it a winning combo for my family. The price point is definitely up there but you do get a high-end build for the cash. I've seen bigger boots in other sedans and not being able to fit a third child seat will limit some families, but this still easily earns an 8.5/10 from me.
My son really loved this one. The ambient lighting was the highlight for him and he thought it looked like a "space car" inside. He gave it a 9/10.
Audi A68.1/10
The new Audi A6 is a composed, rapid, top-shelf luxury sedan. It’s comprehensively equipped, with safety tech a stand-out, and priced to chip away at BMW and Merc’s segment dominance.
But owners in this part of the market tend to be rusted on loyal to their preferred brand, and it will be interesting to see of this impressive newcomer can shake a few of them loose.
Pick of the bunch? Save 10 or $15K or dial down the repayments and go for the entry-level A6 45 TFSI, with all the safety tech on-board, plenty of performance, and most of the luxury features included in the more premium models.
Design
Mercedes-Benz C-Class
The C200 is a sleek and elegant steed.
Initially, you may think this is just a standard Merc showcase. There's the nice big badge on the pronounced nose. Beautiful sleek lines in the body... but it's the attention to detail that make this feel special.
There's a repeated badge motif in the grille and a cute cursive Mercedes logo tucked into the corner of the windscreen. The puddle lights on the doors project the badge at night time and you can often spot a badge etched into the LED lights.
However, it's the interior that's the highlight for me and I feel like it's a big step up from previous models I've been in.
Our model has the grey 'Artico' synthetic leather trim (says grey but it's really white) and a lovely mix of piano black and shiny chrome inserts that are set against soft touchpoints throughout.
The quality of the build oozes through every stitch and join. Don't even get me started on the cool customisable ambient lighting system inside, which makes this feel like you're on the set of Tron and really elevates the interior.
It's quite fun to build one of these in Mercedes' online configurator. You can customise your trims to make it feel like your own and their blue paintwork options are great (I do love a blue car).
Audi A68/10
Revealed in Germany in early 2018, the new-gen A6 brings fresh engines, leading edge safety, upgraded media tech, and an evolution of the brand’s distinctive design language.
Always a subjective call, but to my eyes the A6’s exterior, while crisp and contemporary, is evolutionary rather than a game-changing step ahead.
The signature single frame grille is even bigger than before, to the point where it feels like Audi has entered an arms race with the current oversize grille superpower, BMW.
A strongly curved roofline accentuates the car’s steeply raked C-pillars, giving it a close to fastback style. Broad, sweeping surfaces are combined with harder defining edges and creases, while short overhangs accentuate the carefully sculpted, tightly wrapped look.
The A6 45 TFSI rides on 19-inch ‘5-twin-spoke’ design alloys which fill the wheelarches nicely, while the 45 and 55 S line run on similar design 20s.
The S line exterior package incorporates specific front and rear bumpers with honeycomb inserts, side air inlet grilles in ‘matt titanium black’ with inserts in ‘platinum grey’, rear diffuser in the same black, this time with chrome trim, side sill trims, and illuminated aluminium door sill trims with S logo at the front
But the short story is, it looks like a big A4, or a small A8. For some, a very good thing, for others the ‘they all look the same’ syndrome may be a question mark.
The interior is a model of Teutonic restraint, the sleek dash and instrument cluster layout showcasing three digital screens covering instruments, media and other functions as well as heating and ventilation.
Long, horizontal vents are an Audi design favourite, the seats look and feel superb and the entire cabin reeks of quality and attention to detail.
Practicality
Mercedes-Benz C-Class
I'm not going to lie – there are sedans out there that have an almost limo-like space inside but the C200 isn't one of them.
It's not small by any means and all occupants enjoy the comforts of decent legroom and headroom but it's not cavernous considering the specs (1437mm high/1820mm wide/4751mm long).
The optional panoramic sunroof does cut into the headroom for back seat passengers, which is something to consider if your family is very tall.
The storage is maybe a tad leaner-than-average for a car of this size. The glove box and middle console aren't massive but will suffice.
The cupholders up front can be removed if you need extra storage space for larger items and back seat passengers enjoy retractable cupholders in the armrest.
The way the front doors curve out creates a larger than normal storage bin and drink bottle holder – which help make up the difference. There is a dedicated phone pocket, to tuck it out of the way.
The boot space is 455 litres (VDA), which isn't as large as some others on the market but it was plenty big enough for my family's needs.
There's a handy under-floor storage pocket for smaller items, like the puncture repair kit, because you don't get a spare tyre in this.
When it comes to ease of use, my six-year-old loved not needing my help to get into his seat and he still enjoyed a decent view out of the wide back window.
The amenities in each row are good but not class-defining. Still, creature comforts have be well-thought through.
Front occupants enjoy heated seats and fantastic lumbar and under thigh support. Dual-zone climate control sorts out the temp, and the cool circular air vents that make loud audible 'clicks' when manoeuvred give the interior a jet cockpit vibe.
While I've never had an issue opening or closing a sedan boot, the powered lid was a nice feature to have this week.
The tech throughout is great and intuitive to use. The massive 11.9-inch touchscreen multimedia system is cool and is easy to use once you become acclimatised to Mercedes system.
The customisable digital instrument panel makes the driving experiences feel individualised.
The interior is a chilled out space with gentle scrolling touchpads taking the place of most 'push' buttons and dials.
Think of each surface as being a bit like a touchscreen tablet in how you operate it. I was a little worried the touchpads would be laggy but they're very responsive.
There's only one USB port in the whole car, which limits charging for other passengers but I did enjoy the easy connectivity of the wireless Apple CarPlay.
The electric heated front seats are a nice touch but I was amused by the 'kinetic' function on both. It's what you might call a 'massage' function on another car but here they don't really work. It's best to think of them as a way to do some (very) gentle stretching on a long trip.
The 360-degree camera view is super clear and crisp but the dynamic guidelines (which tilt the camera angle) are a bit too dynamic for my liking and I relied mostly on the bird's eye view to park.
As I've mentioned, the ambient lighting system creates a stellar atmosphere inside. I've often wondered why other car manufacturers haven't jumped on that bandwagon because it's a relatively cheap way of creating wow factor. And it generates massive wow factor in here.
Audi A68/10
Large rather than huge, the A6’s key dimensions are within mm of its key segment competitors like the 5 Series and E-Class, as well as the Jag XF and Lexus GS.
Room for the driver and front passenger is generous, with ample storage provided including dual (covered) cupholders in the centre console (also incorporating a 12-volt outlet and key holder slot), a decent glove box, and door bins allowing easy bottle storage.
The lidded storage box/armrest between the front seats is relatively shallow but includes a wireless Qi (chee) charging mat (for compatible devices), plus SIM and SD ports, as well as a pair of (Type-A) USB sockets.
The wheelbase has stretched 12mm in this new model, but Audi says it has eked out an extra 21mm of interior length, with 17 of those added to the rear section. And I’m able to sit behind the driver’s seat set for my 183cm position with heaps of head and legroom on offer. Three adults across the rear is definitely do-able for short to medium length trips.
In the rear, a fold-down centre armrest features a lidded storage tray and twin pop-out cupholders (the latter on S line models only). There are netted pockets here and the door bins are big enough for large drink bottles. There’s also climate control ventilation, USB ports, 12-volt power… the lot!
Boot capacity is around the average for the class at 530 litres, and the A6 swallows our three-piece hard suitcase set with masses of room to spare, as it does the jumbo size CarsGuide pram. In fact, it was able to take the largest case as well as the pram at the same time. Drop the 40/20/40 split-folding rear seat to liberate even more volume.
There are pop-up tie-down anchors at each corner of the boot floor, a netted storage cavity behind the passenger side wheel tub, a 12-volt outlet on the driver’s side, a handy fold down shopping bag hook, an elasticised net is included on the S lines, and a space-saver spare sits under the boot floor.
Towing capacity is the same across the range – 2.0 tonnes for a braked trailer, and 750kg unbraked. The spare is a space saver on all models, too.
Price and features
Mercedes-Benz C-Class
Herein lies the rub. There are four models for the C-Class sedan and ours is at the bottom of the pack.
But don't let its position fool you in thinking it'll be cheap because this model starts at $78,900... and that's before you start adding the option packs.
Our model is fitted with the 'Vision Package' which adds a host of features – like a panoramic sunroof, head-up display and heated front seats, to name just a few. This adds about $3000 to the price tag.
This also has the optional 'Sport Package' which adds 19-inch AMG alloy wheels and rear privacy glass, among other things, for an extra $1300.
Unfortunately, even without all of those options, this is still one of the most expensive 'entry-level' sedans in the luxury class!
Audi A68/10
The A6 launches with three models, the 2.0-litre, four-cylinder turbo-petrol 45 TFSI at $95,500, before on-road costs, the more premium 45 TFSI S line at $105,200, and the top-shelf 3.0-litre turbo-petrol V6 55 TFSI S line at $116,000.
Included on the A6 45 TFSI are 19-inch alloy wheels, matrix LED headlights with LED DRLs, dynamic cornering lights, automatic-dynamic headlight range control and rear dynamic indicators (the Matrix beam detects and blanks out oncoming vehicles or vehicles in front, but continues to fully illuminate other areas), keyless entry and start including a sensor controlled (leg swish) boot release, electric heated sports seats for the driver and front passenger (including memories for the driver), ‘leather appointed’ seat upholstery, three-zone climate control air, a leather-trimmed steering wheel, ‘aluminium fragment’ interior inlays, ambient lighting, and aluminium front door sill trims.
Plus, ‘Audi Drive Select’ allows the selection of various driving modes, there’s Audi’s smartphone interface providing Apple CarPlay and Android Auto connectivity, ’Qi’ wireless charging, 10-speaker/180-watt audio driven by a six-channel amp and featuring digital radio, the 12.3-inch configurable ‘Audi Virtual Cockpit’ digital instrument cluster, 10.1-inch high-res colour media touchscreen, ‘Navigation Plus’ (with 3D map display including places of interest and city models), and a third 8.6-inch colour display for the climate control system (with handwriting recognition and a favourites list).
The recently introduced ‘myAudi’ app also allows you to connect to the car and access real-time info on everything from how much fuel’s in the tank, to maintenance milestones, and service warnings. You can remotely lock and unlock the car, plan journeys (at home) and send destinations and routes directly to the car.
Then the 45 and 55 TFSI S Line models add ‘Valcona’ leather trim (seat centre panels, seat side bolsters, head restraints and centre armrest, and door trim inserts in Alcantara faux suede), a flat-bottom leather-trimmed sports steering wheel, a head-up display (colour, with speed, nav and assistance info), illuminated front door sill trims, 20-inch alloy wheels, and electronically controlled adaption of the dampers.
Under the bonnet
Mercedes-Benz C-Class
The C200 has a 1.5-litre, four-cylinder, turbo-petrol engine with an integrated starter-generator.
What's that, you ask? So, glad you did. It's basically an electric battery that also acts as your starter... or alternator.
It smooths out vibrations from the engine and generates some power from braking. Making this a very mild hybrid. Note the 'mild'.
Is it powerful? Surprisingly, yeah. It has a maximum output of 165kW and 300Nm of torque. Combine that with the starter-generator and we have a powerful little engine that can push the C200 from 0-100km in 7.3 seconds, while still feeling like there's power in reserve.
The nine-speed auto transmission is damn smooth and there's no clunky gear changing at any speed. It's got great pick-up, too, for when you need to overtake or zip across traffic.
Audi A69/10
The 45 TFSI is powered by a 2.0-litre turbo four, and the 55 TFSI by a 3.0-litre turbo V6, both featuring a mild-hybrid system recovering braking energy to enable coasting at higher speeds and in the latter case power the stop-start system.
The VW Group (EA888) engine used in the A6 45 TFSI is an iron block/alloy head single turbo unit featuring direct-injection and variable valve timing on the inlet side. It produces peak power of 180kW from 5000-6000rpm, and maximum torque of 370Nm from 1600-4500rpm.
The (EA839) engine used in the A6 55 TFSI is a 90-degree 3.0-litre, all-alloy, single (twin-scroll) turbo V6 featuring direct-injection, variable camshaft adjustment (intake and exhaust side) and variable valve timing on the inlet side. It produces 250kW from 5000-6400rpm, and 500Nm between 1370rpm and 4500rpm.
The 55’s 48-volt mild hybrid electrical system recovers regenerative braking energy to power the stop/start system and enable coasting (for up to 40 seconds) between 55-160km/h. It consists of a 10 Ah lithium-ion battery under the boot floor, a water-cooled belt alternator starter (BAS) mounted to the engine’s front end, with a V-belt connecting it to the crankshaft.
As is increasingly the norm with Vee engines from the ‘Big Three’ German brands this one has its single, twin-scroll turbo located in the V6’s ‘hot V’ to shorten gas paths from the exhaust to the turbo, and from the turbo into the inlet side for better throttle response (as in, minimal turbo lag).
Drive goes to all four wheels via the latest gen version of Audi’s quattro system and a seven-speed dual-clutch auto transmission.
Efficiency
Mercedes-Benz C-Class
The official combined cycle fuel figure is 6.9L/100km. Real world testing saw my figure at 7.2L, which was awesome for the heavy driving I did this week on a combo of urban and open-roads.
The light regen braking probably helps this coast comfortably into being a very efficient sedan for its size.
Minimum fuel requirement is 95 RON premium unleaded and you'll need 66 litres of it to fill the tank.
Driving range using the official consumption figure is around 950km, and 915km using our real-world number.
Audi A68/10
Claimed fuel economy for the combined (ADR 81/02 - urban, extra-urban) cycle hovers all the way from 7.2L/100km for the 45 TFSI, to 7.3L/100km for the 45 TFSI S line, and back to 7.2L/100km for the 55 TFSI S line.
CO2 emissions sit in a similarly narrow band, the 45 TFSI producing 165g/km, the 45 TFSI S line 166g/km, and the 55 TFSI S line 164g/km.
Stop/start is standard on all models, minimum fuel requirement is 95 RON premium unleaded, and you’ll need 73 litres of it to fill the tank (on all models).
The local A6 launch drive program ran to the south of Adelaide in South Australia, with some freeway running followed by the twisting rural B-roads running through the McLaren Vale wine growing area. Spending most time in the 45 TFSI S line (because we’d previously driven the 55 TFSI S line) we saw a real-world average of 9.1L/100km, courtesy of the on-board computer.
In our previous review of the 55 TFSI, over five days of city, suburban and freeway running we recorded a figure of 8.8L/100km. Both numbers impressive for a close to 1.8-tonne luxury sedan.
Driving
Mercedes-Benz C-Class
The steering feels solid and concise. The tyres seem like they're glued to the road, making winding roads downright fun to tackle. Oh, and the sharp 11 metre turning circle is wonderful.
The handling makes this your best friend in a car park. The lower ground clearance did elicit some unladylike grunts when I parked on a hill, but otherwise the wide door apertures makes it easy to get in and out of.
The only thing I would note is the low-profile ground clearance. Just be aware of your speed and angle when you handle car park ramps or road bumps in this. They are not your friends.
Audi A67/10
Audi claims the 45 will sprint from 0-100km/h in six seconds, and the 55 in just over five. So, quick, and very quick.
Both are super responsive in the mid-range with peak torque available from just 1600rpm in the 45 and less than 1400 in the 55.
As is increasingly the norm with Vee engines from the ‘Big Three’ German brands the 55 TFSI’s single, twin-scroll turbo is located in the V6’s ‘hot V’ to shorten gas paths from the exhaust to the turbo, and from the turbo into the inlet side.
The aim is to sharpen throttle response and deliver power in a smooth, linear flow. And with maximum torque available from so low down in the rev range, that’s exactly the way it feels.
Select Sport mode, squeeze the right-hand pedal, and the 55’s V6 delivers a firm, consistent shove in the back. The 45 is less urgent in terms of acceleration, but more than adequate for easy highway cruising and confident overtaking.
Both are quietly quick, thanks in part to low-noise acoustic glass and comprehensive use of sound absorption materials around the cabin, remaining composed and relatively subdued as speed rises.
The seven-speed dual-clutch delivers ultra-smooth shifts at around-town speeds and crisp, positive changes in manual mode.
In normal, suburban-style conditions the quattro system decouples the rear axle and sticks with front-wheel drive economy. If all-wheel drive is required, a tricky clutch instantly activates it, in certain situations predicatively.
On top of that, in aggressive cornering torque vectoring by braking (Audi calls it ‘Wheel-Selective Torque Control’) retards the near-side wheels before they slip.
Suspension is a five-link set-up front and rear, with much of the hardware made from aluminium to fine tune response and reduce unsprung weight.
Electronically controlled adaptive dampers are standard on the S line models, with the switch between dynamic and comfort settings swift and pronounced.
Rims are 19-inch on the 45 and 20s on the 45 S line and 55 S line, but all variants are comfortable. Never floaty or unwieldy, just refined and well damped.
The electromechanically assisted steering points accurately but the assistance is overdone and road feel isn’t one of the A6’s strongest suits.
Brakes are 375mm ventilated discs at the front, clamped by six-piston alloy calipers, with 350mm rotors at the rear. They inspire confidence, with progressive feel and more than enough to confidently arrest the 1.8-tonne A6's progress.
Safety
Mercedes-Benz C-Class
The safety sheet is well-stocked and has the usual suspects you want in a family car, like: AEB with car, pedestrian, cyclist and junction turning assist (effective speed 7.0-90km/h); forward and back-over collision warning, lane keeping assist, lane departure warning and emergency lane keeping assist, as well as, blind-spot monitoring.
I quite like the 'Active Distance Assist' which helps to automatically slow your vehicle speed to keep a set distance to the car in front in stop-start traffic.
Perfect for those busy city commutes. And if you're not confident on parking, this also has a 'Park Assist' feature.
It's nice to see that this has nine airbags, which include a driver's knee airbag and the newer front centre airbag.
This has a maximum five-star ANCAP safety rating which is nice and new from testing done in 2022.
There are ISOFIX child seat mounts on the outboard rear seats and three top tether anchor points but because of the narrower rear seat, you'll only comfortably fit two side-by-side.
It was super easy to fit my seats and there's a good amount of room for front passengers when a 0-4 rearward facing child seat is installed.
Audi A610/10
Safety is literally five star, the A6 scoring ANCAP’s maximum rating when the car was tested in 2018, and active and passive tech is amazing.
The usual active safety suspects are all present and accounted for, namely ESC (with electronic wheel-selective torque control), ABS, ASR, EDL and ‘Brake Assist’.
But from there the list of standard tech reads like a who’s who of recent innovations, including ‘Adaptive Drive Assist’ (adaptive cruise control with ‘Stop&Go’, distance indicator, traffic jam assist and lane guidance assist), AEB (5.0km/h to 85km/h for pedestrians and cyclists, and up to 250 km/h for vehicles), ‘Collision Avoidance Assist’ (additional steering torque in critical evasive situations), rear cross traffic alert, blind spot warning, and lane departure warning.
The 360-degree camera set-up includes a kerb view function, with four wide-angle cameras covering the entire area immediately around the vehicle for improved visibility during low speed maneuveres.
There’s also an exit warning system (detects vehicles and cyclists when opening doors, triggering a warning light and delaying door opening), ‘Attention Assist’, tyre pressure monitoring, ‘Audi Parking System Plus’ (front and rear with visual display), and ‘Intersection Crossing Assist’.
That last one operates at speeds up to 30km/h, monitoring the area in front and at the side of the car, detecting “oncoming objects” at junctions and exit roads. If the situation is critical the system triggers a visual and acoustic warning as well as a quick jolt on the brakes (at speeds up to 10km/h).
But it’s not over yet, with auto headlights, rain-sensing wipers and ‘Turn Assist’ included. Turn Assist monitors oncoming traffic when you’re turning right at speeds up to 10km/h and applies the brakes if necessary.
If all those measures aren’t enough to avoid an impact passive safety leads off with front airbags for driver and passenger, side airbags for front and rear side passengers, plus curtain airbags covering both rows.
Also included is ‘Audi Pre-Sense Rear’ (tensioning of front seat belts, closing of windows and sunroof and flashing hazards on detection of an impending rear collision), the standard active bonnet helps to minimise pedestrian impact injuries and there’s a first-aid kit as well as a warning triangle and high-vis vests in the boot.
No surprise the new A6 scored a maximum five-star ANCAP rating, the assessment done in 2018 and the score applicable from August 2019 onwards.
Ownership
Mercedes-Benz C-Class
The C200 comes with a five-year/unlimited km warranty, which is standard for the market.
There are multiple servicing options and on the five-year plan, the services average $1090 annually, which is quite expensive.
Servicing intervals are pretty good at every 12 months or a longer than usual 25,000km, whichever comes first.
Audi A67/10
Audi covers the A6 with a three year/unlimited km warranty, which is in line with BMW and Merc, but lags the mainstream market where five years/unlimited km is the norm, with Kia and SsangYong at seven years.
That said, body cover runs to three years for paint defects and 12 years for corrosion (perforation).
Recommended service interval is 12 months/15,000km, and ‘Audi Genuine Care Service Plans’ offer capped price servicing options over three and five years.