The interior does a far better job, the super stylish C-Class cabin enhanced with aluminium trim, some jazzy stitching and a pair of really good seats. Certainly it makes a 4 Series look rather sombre, though the Audi comparison would still appear to be the most relevant one.
coupe and cabriolet: barely 10 miles in the sunshine with the coupe, followed the next day by a roof-up drive in a storm with the cabriolet. Perhaps not the most comprehensive or best suited test, then, but one probably very representative for UK customers.
The coupe drive comes soon after the C63 thras- ... evaluation ... and immediately there are areas where V6 improves over V8. It feels much lighter for a start (because it is), more nimble and lithe in similar conditions. The reduced mass benefits the ride too, the C43 flowing in places where the 63 might have thumped. Even the steering feels improved; not only are there elastokinematic tweaks on the front "adopted" from the C63, but it also has just two modes for the speed sensitive power steering rather than three. Fewer modes tend to be better when it comes to things like steering. Combined with the reduced mass, the '43 steers more precisely than the '63, with less artificial weight in the racier mode too. It's not an Elise, granted, but the improvement is there.
In the limited time with the coupe on the road, it felt mature, safe and capable of carrying plenty of speed. If that makes it sound a little dull that's because, after the C63, it did feel just a little plain. That's not in some wild, tyre-smoking hooligan way either; the V8 car always rear-driven in an exciting yet accommodating way where the '43, not unlike the original A45 in fact, feels rather locked down at road speeds and uninterested in doing much beyond gripping. Mercedes says the all-wheel drive helps differentiate the two models, but then it could be argued that a litre of swept capacity, two cylinders and more than 100hp does that as well. Let's see how it fares - journalist get out of jail free card here - how it feels in the UK and, more importantly, against that S5.
Much of what appeals about the coupe remains intact for the drop-top, particularly the powertrain. The slick surface doesn't turn the C43 into some kind of Evo-style 4WD weapon, but you'll hopefully understand something less than maximum commitment in weather this bad. In fact, the easily accessible performance and tremendous grip suit the more relaxed cabrio well. The V6 still sounds fantastic with the roof up too, snarling and barking its way through the rev range; shame about the contrived overrun crackle though.
C450 AMG last year. If you're after a fast Mercedes, chances are it already exists or is on the way! AMG's success with the C-Class has been in creating two very different products, each with their own unique appeal. On this experience of the C43, it unsurprisingly offers similar merits to those found in the C450, namely a strong powertrain and real dynamic quality in areas such as the damping. It's not as overt as the V8 car but that's exactly the point, and if you want a stylish and rapid compact exec than it comes highly recommended. For us, however, the pull of the '63's fantastic engine and more engaging handling is too strong to ignore - if there's any possibility of obtaining the V8 instead of the V6, you won't regret it.
MERCEDES-AMG C43 4MATIC CABRIOLET
Engine: 2,996cc, V6 biturbo
Transmission: 9G-Tronic, all-wheel drive
Power (hp): 367@5,500-6,000rpm
Torque (lb ft): 384@2,000-4,200rpm
Top speed: 155mph
*Weight includes 90% full fuel tank, with 68kg driver and 7kg luggage