hmmm....$50mill you say..

1) caterham 7 would be a fun hills/track car
2) older m3 (e46 ish) tastefully modified but close to standard
3) one of those wagon audi's with the v10 (this is the groceries car)
4) white standard r32 GTR NUR

id keep my ke too

put the rest in the bank, and use the interest to fund my hobby's.

though id need an epic garage to keep them, and a house...and a boat outside my house....