I have a 2011 Hennessey Camaro and love it. Basically a souped up zl1. A killer car capable of over 200 mph.
Traction issues make it a little slow at the dragstrip though.
This looks fun too;
http://www.duramaxdiesels.com/forum/showthread.php?t=52760&highlight=camaro
Hennessey is a ****ing crook. Nuff said.