Now, Mercedes has already managed to make the naming of its GT line-up unnecessarily convoluted. Currently you can buy an AMG GT, GT S, GT C or GT R, as well as convertible versions of the GT and GT C - no, C doesn't stand for convertible. So when it comes to adding three more four-door models to the range, something along the lines of AMG GT+, GT+ S and GT+ C - leaving the two-door GT R as the standalone pinnacle of AMG performance - would seem the obvious choice, right? Wrong. Instead Merc has reverted back to its traditional naming system for these cars, and thus given us the GT 53, GT 63, and GT 63 S.
You can never have too much choice, though, so let's get on with seeing how this lot stack up. As the entry level model, the GT 53 is powered by a 3.0-litre inline-six, producing 435hp and 385lb ft of torque. Uniquely to this car, however, the addition of Mercedes' EQ technology allows for an electrified bump of 22hp and 185lb ft, bestowing it with a 0-62 time of 4.5 seconds and a top speed of 177mph.
At the top of the tree sits the GT 63 S, drawing its strength from the same twin-turbo motor which here puts out 640hp and - between 2500 and 4500rpm - a maximum torque figure of 665lb ft. That's good for 0-62mph in 3.2 seconds and a top speed of 195mph.
There's no word on pricing or options yet, although, while Mercedes describes the interior as being "characterised by elegant coolness" and "ultra-modern features" the press release is also heavy with mentions of 'individualisation' and 'equipment packages'. So whatever the list price is, expect there to be a typically large number of ways to escalate it very quickly indeed.