Gaydon, Warwickshire - Aston Martin’s DB11 coupé is now available with a four-litre twin-turbo V8, in addition to the original 5.2-litre V12.
Rated for 375kW at 6000 revs and 675Nm from 2000-5000rpm, it drives the rear wheels via an eight-speed gearbox, taking AM’s gorgeous grand turismo flagship from a standing start to 100km/h in four seconds flat, and on to 299km/h flat out.
The new engine weighs just 209kg, thanks to its compact design with the two turbos tucked into the V of the cylinder banks. And if all that sounds familiar, it should - yes, this is Affalterbach’s fire-breathing M178, as found in the AMG GT coupé and a number of Mercedes-AMG /63 models.
It’s the first engine to be supplied to the Gaydon works by AMG (although it won’t be the last, according to Aston Martin chief technical officer Max Szwaj) and, thanks to a generous agreement with the Affalterbach hierarchy, Aston Martin has been allowed to fit its own special air intake, exhaust, ECU mapping, and a specially designed slimline wet-sump lubrication systems.
In Mercedes-AMG models the M178 has dry-sump lubrication, but the DB11 has no provision for a separate oil tank, so a wet-sump layout was a pre-requisite. What’s more important from Aston Martin’s point of view, however, is that the V8 is a lot smaller and lighter than the existing V12, so it can be mounted further back and lower in the chassis, moving the centre of gravity down and nearer the middle of the car.