By modded I belive the threadmaker meant "made"? In that case;
A good Bmw E39 M5, not like that ugly "Tuned" one that doesn't resemble the real one, one bit. More time-appropriete too.
Volvo 940, if you got the skills to make cars this will be a good one, also good according to early 90's.
However, no more supercars which has "poorfamily" in the viechles.ide line, really bad.