I would Definatly go with the Henessy Viper ACR.

*Looks awesome, Side exhaust turns me on.
*Pull up to almost anything at a redline, you win.
*Amazing downforce, would be a killer track car for the weekends.
*Twin Turbo's.
*1000HP, 1100 ft/lbs, runs 2.9 0-60, Top speed of 255 mph, and one of the few cars that can spank the Veyron in just about every category.
*The Viper series has been my favorite car line for a long time, and this car tops it off.