What is it?
This is a lovely, sothing, deliberately unsensational sort of car, sporting a mix of C and E-Class architecture underneath. Mercs are slow burners at the best of times - unless there's an AMG badge around - but this is a seriously smooth operator.
Engine-wise, the E-Class Coupe has the choice of 204bhp (250CDI) and 231bhp (250CDI) diesels and three petrol units: a 204bhp 2.1-litre (240CGI), a 292bhp 3.5-litre V6 (350CGI) and a 387bhp 5.5-litre V8 (500). The V6 diesel suits the car well. It's silent but for a bit of wind rush around the A-pillars and door mirrors, with the engine note relegated to a distant thrum. As a motorway tool, it's incomparable. It probably won't surprise you to learn that the old-school petrol V8 is the one to have if it's excitement you're after but in truth, nobody really needs anything more powerful than the CDI.
On the inside
The E Coupe is actually based on the C-Class meaning it's shorter than the saloon and so rear leg room is adequate at best for adults. And despite front seats that tilt and slide, getting in and out can be on the inelegant side too. The boot is capacious at 450 litres, but quite shallow.
The interior follows the same sensible layout of the E-Class saloon but it's not an identical copy. It's been constructed with a confidence that's been missing from recent Mercs, as if each piece hasn't been built by the lowest bidder. So it's strong, solid, purposeful with all the materials feeling cm and not mm thick.
Proof that Mercedes' preoccupations - like everyone's - are changing comes with the news that the E-Class Coupe is apparently all about 'exciting efficiency'. Blue Efficiency is Merc's vaguely comical name for its package of eco measures, including reduced rolling resistance tyres, the clever aerodynamic bodywork and a system that sends power to the steering rack, the fuel pump and alternator only when needed. This applies to both the 350 CDI and 350 CGI and the results are impressive, especially the diesel. It has a combined figure of 41.5mpg and is in VED Band I (£180) both of which are very good for such a large coupe.