Well my current lease (Audi) is up in Sept and although that's a few months out I'm debating the following replacements:
C6 Corvette
C55 AMG
Audi S4
BMW M3
Caddy CTS-V
300 C SRT8
Infiniti M45
Personally, after driving the vette which wasn't even on my radar screen it's at the top of my list, even though the interior is still sub-par for a 50k car. Funny thing is that the vette is cheaper than the M, S4 and C55 to insure. However on the negative side, the vette also has the lowest residual value.
Any others? 60K is my cap.