Audi A6 3.0 TDI Biturbo 2013 review

‘Diesel’ and ‘fast’ are not usually uttered in the same breath when it comes to mainstream cars. Diesel and strong, as in roll on acceleration, yes but fast? Not really. You want serious performance you get a turbo or V8 petrol.

But Audi (and Peugeot) have dominated at Le Mans and other ‘Sports Car’ race venues with diesel powered vehicles. Really dominated. It comes as no surprise then that Audi has tapped into this technology for its street cars at the pinnacle of which is the new A6 3.0 TDI biturbo sedan.

Not only does it bestow the A6 with serious performance, it also sounds incredible like no other diesel you've ever heard. Diesels are not noted for aural resonance but with an exhaust sound actuator, this car sounds as good as a V6 Alfa on full song but two octaves lower.

Explore the 2013 Audi A6 range

• Audi A6 3.0 TDI Biturbo 2013 review
• Audi A6 2013 review

It propels the 1790kg A6 from 0-100km/h in a scant 5.1 seconds and returns fuel economy in the low 6.0 litres bracket. Pretty good huh?

VALUE

The biturbo comes in at $118,800 with a significant Luxury Tax reduction due to the sub 7.0 litres/100km fuel rating. Bose audio is included along with LED headlights, a rear vision camera with excellent park assist system, convenience key and plenty more.

TECHNOLOGY

The 3.0-litre V6 is also used in an A7 model and also the forthcoming SQ5 performance SUV diesel. It's an amazing thing. The engine achieves a hearty 230kW and an astonishing 650Nm of torque from as low as 1450 revs. No wonder it gets up and boogies.

The two turbos are fitted in series with a small unit handling low speed applications and a larger one taking over from mid-engine speeds. It also has variable valve timing and lift among a raft of optimisation technology that helps it pass Euro 5 emissions regulations. Engine internals are friction reduced as well.

DESIGN

The problem with the A6 is that it looks too derivative. Too much like an Audi A4 which costs half as much. Look past that and you have one of the more desirable medium large prestige European cars on the market complete with quattro all-wheel drive, a steel/aluminium composite body, engine stop/start and a silky smooth eight-speed auto transmission with paddle shift.

It's a five-seater with a large boot and folding rear seats. The interior is a sea of leather with a stylish and functional dash complete with a retractable large screen touch pad for info, multimedia and car set up via Audi's brilliant Drive Select system.

DRIVING

The drive feel is superb. Hit the accelerator and away it goes delivering possibly the most linear acceleration you can get. There's a moment of hesitation off idle but once it's up and running whoosh all the way through to the 5200rpm redline then imperceptibly into the next gear.

There are about six modes in drive select spanning comfort through to dynamic but we mostly used auto. It has impressive handling and braking too. Offering soft through to firm feel to the suspension, transmission and steering engine. And the sports stability program. This is Australia's fastest diesel and a car that would satisfy any driving enthusiast. It has a classy appearance with 18-inch alloys and attractive body shape and lines.

VERDICT

One out of the box. Completely anonymous in the Audi line-up but you'd have one every day over the lesser 3.0 TDI there are two of them. Go figure.

Audi A6 3.0 TDI Biturbo

Price: from $118,800 
Warranty: 3 years/unlimited km
Engine: 3.0-litre 6-cyl, 230kW/650Nm
Transmission: 8-speed auto, AWD
Body: 4915mm (L); 1874mm (w); 1455mm (h)
Weight: 1790kg
Thirst: 6.4L/100km 169g/km CO2