Meet The 604bhp Mercedes-AMG GT 63 Pro

It was only a matter of time before the new Mercedes-AMG GT range began to sprawl to an expanse comparable to the Porsche 911. There was already the GT 63, followed by a mad but heavy 805bhp S E Performance hybrid – oh, and that four-cylinder some countries are getting.

You can add a fourth model to that collection now with this, the new Mercedes-AMG GT 63 Pro. It’s a sort of new trim for the AMG GT. The previous generation car had the GT R Pro – a track-biased of the slightly more bonkers R, but this is not quite the same.

So what makes a Pro, then? A power boost for a start, with peak output for the 4.0-litre twin-turbo increased from 577bhp to 604bhp. There’s a 37lb ft lift in torque to 627lb ft, too.

That’s still delivered to a 4Matic all-wheel-drive system via a nine-speed multi-clutch gearbox, with 0-62mph dusted in 3.2 seconds. That’s a healthy drop from 3.9 seconds in the base GT 63, albeit four-tenths slower than the hybrid. It’ll go on all the way to 197mph.

This is a more track-oriented car than either of the other 63 variants and gets a fitting aero package as a result. This includes a redesigned front end with gargantuan air intakes plus underbody active aero, which Mercedes says contributes to a 30kg reduction in lift on the front axle. Oh, and if you hadn’t spotted, there’s a rather prominent rear wing as well.

Chassis hardware is matched to the 63, meaning AMG’s Active Ride Control suspension, but you will get carbon ceramic brakes included at no extra cost. You’ve also got the no-cost choice of Michelin Pilot Sport Cup 2R tyres or, a more preferable option if you live anywhere with rain, a set Pilot Sport 5.

A few changes have been made to the cooling system, though, with two new radiators positioned in the front wheel arches while those for the front and rear diffs are now actively cooled rather than passively.

No word yet on how much the Mercedes-AMG GT 63 Pro will cost, though we’d expect somewhere between the base car’s £164,905 and the hybrid’s £180,745.