As many have said, 370Z.

Nearly identical straight line performance to a stock SRT-6, only it's skid pad, slalom, etc absolutely annihilate the SRT-6.

You can get one well optioned with 0 miles for 35K. Zero options, and you're looking at 31K.

OR you could get a new Camaro with the LS3. It will obliterate the SRT-8 Challenger. Doesn't look as good, though, but is over 10 grand cheaper.