I think Mercedes-AMG might have a problem with its new C63 coupé.

It’s not that there appears to be much wrong with it. In fact, in matt black paint on the stand at the New York motor show, it never looked less than utterly gorgeous. And we know enough about its 4.0-litre twin-turbo V8 to believe it's unlikely to be spoiled much by being linked to a gearbox with nine rather than seven speeds or, in the 476bhp C63, by having the same electronically controlled limited-slip differential already available in the 503bhp C63 S.

No, while I think it will cause AMG a problem, I don’t think it will be for the C-Class. I think it might just make things a little tricky for the GT.

I don’t mean either the GT R or GT C versions of AMG’s two-seat supercar, because they have power, performance and, in the latter, a focus that takes it far beyond the ambit of the C-Class coupé. But for the GT and GT S models? Well, let’s take a look.