Lexus RC VS BMW Alpina B4

As it has ever been, the RC350 is one smooth, smooth ride. Even the way the doors open is relaxing: swinging wide open like the hinges are made of butter, (except butter that doesn't melt or sag). Look, I'm trying to avoid saying smooth again.

Engine start-up is barely audible and while pottering about the engine remains just as subdued. It's up to the digital dashboard, with its instruments clustered into a single dial with a digital speedo, to let you know what's going on. Few cars outside of the Lexus stable are this relaxing to drive.

What I don't remember from the last time I drove an RC was all-wheel steering. Either I wasn't paying attention or Lexus snuck it in - but it really makes a difference. It's not as aggressive as, say, the bonkers RC F or Renault Sport Megane, it's just there to help bring the heavy car around. It also seems better sorted than the same system in the bigger LC500. And the steering's variable rack works well with it as a partner, too.

The RC's adaptive suspension is so good at what it does. It never over-tightens the suspension but does make a difference in Sport+. It's not really in the 350's nature to take it out for a good thrashing, but it's certainly capable - if held back a little by its portly kerb weight and soft brake pedal feel.

One of the key differences between the B4 and M4 is the ride. While the M4 can crash over bumps and generally be a little hard to live with, the crew in Buchloe have gone after a much more plush ride. And in that they have succeeded because the B4 S is a mighty fine cruiser. Bumps are dismissed with a haughty disdain, even Sport + silliness doesn't completely write-off ride quality.

Very impressive too, is the steering. While still not at Lotus Elise levels of feel (few cars are), the Alpina tweaks connect the your palms to the road with more clarity than what you'll find in the 440i or M4. Where the M4 particularly adds too much weight, the 440i is a bit more circumspect in that regard.

And then we come to the engine. The B58 six is a belter, better even than the N55 that preceded it. It's still a 3.0-litre straight six but is part of BMW's modular engine family that starts with a 1.5-litre triple in the Mini and 1 Series. The Alpina-spec turbos are noisier, the Akrapovic exhaust lighter and also noisier. It doesn't have the all-out crackle and pop of an Audi or Merc (perish the thought), but when you're on it, the B4 means business. The 660Nm of torque, available over a wide rev range, delivers a steel fist wrapped in a velvet glove and bubble wrap - the speed builds rapidly but smoothly. 

The approach to the chassis tune seems to be based on the driving talents of mere mortals on normal roads, which is kind of like the 440i. It's terrific fun to drive hard but it's very forgiving and patient. The great thing about it is that you wouldn't think twice about jumping in it for the long haul, so comfortable and quiet is the cabin. The M4 will leave it for dead on a winding road, but that's perfectly fine.

One irritant is the replacement of the admittedly cheap BMW gearshift paddles with weirdly non-tactile buttons. They're not particularly easy to use and, probably worse for a sporty car, unsatisfying. It's an odd detail with which to go off the reservation. Cheeringly, the eight-speed ZF is its usual perfect self, so you don't have to worry too much about manual mode or go old school and use the shifter.