With a 650-horsepower V10, most would call the Hennessey
Venom 650R more than powerful enough. After all, the modified Viper can run the 0-60 in just 3.3 seconds and the quarter-mile in 11.2 seconds at 131.5 mph - that is, assuming the driver is skilled enough to put all that power down. The Canucks over at Tunerworks, however, see room to improve even further. Most of the Calgary-based firm's enhancements, though, come down to fresh rolling stock.