a Turbo 4 that can produce 250bhp
Maserati have gone to the trouble to produce a 250hp version of the Ghibli for Italy. It is a V6 Diesel, so not to everyone's taste however it is the entry point 4 door Maserati and can be had for €68K. I don't particularly like the turbo surge and often wonder why more do not use supercharging which would give a smoother delivery.
In any case a forced induction motor with a 250hp top end would accelerate like a scalded cat and have plenty of "real-world" performance. How often do owners really take their V8s to maximum power?
And as for the sound track you can always use
SoundRacer