yah henessey viper venom...
beautiful... and very fast, 1000 hp.
0-60 mph: 2.9 sec
0-100 mph: 5.9 sec <---- :O
but if that wasn't crazy enough... try the venom GT
which is basically a 725hp Lotus Elise, its not in production yet, and I imagine its built to order, but its just insane.