Surely that's exactly what many owners try to do, with upgraded / modern engines, uprated brakes, suspension, exhaust etc etc?
I don't mind the manufacturer having a go, in fact I actively encourage it. A modern saloon / coupe that's retro looking and steps out of the shadow of the standard euro box??
Sorry I meant in looks. It's personal. I much prefer all cars from the 60s 70s as they are. The Mk1 Cortina, capri and escort being my personal favourites.And of course RWD.