(Sorry guys, I gotta do this...)
Buy a ZL1 Camaro Convertible.
http://blogs.insideline.com/straightline/2011/07/il-track-tested-2011-chevy-camaro-zl1-slp-convertible.html
Price: $80,000 (Plus cost of a donor 1SS or 2SS -- $31,070/$34,420 -- for a total of $111,070 - $114,420)
Acceleration...