I have 2 vette ZR1s RMs fully tuned/suspension tuned as well for both (around 700k each )
Ford GT race car spec 2(worth 2.5mil in used cars)
WRC Impeza rally car. (worth 850k) Suspension tuned for rally.)
crap ass bugatti 1242hp.
Lamborghini Gallardo fully tuned.(suspension as well)
Audi Le mans Quattro(the car not the suv)