its soo freakin sexy. i believe 255. Bugatti has more weight, and probably more downforce, which is why you have to set it to top speed mode and make the rear wing drop a little. All the people that knock on viper displacement should know that the very displacement they can't stand is what keeps the torque on this viper comin, allllll the way to 255!! You think 1000 hp is a 1000 hp is a 1000 hp??? NOPE! 1000 hp with 1100 ft/lb tourque means more MPH than 1001 hp with 922 ft/lb.
http://www.caranddriver.com/article....&page_number=5