The Dodge Ram SRT was created by DaimlerChrysler’s PVO (Performance Vehicle Operations) division, using Dodge Viper and Plymouth Prowler engineers. Extensive wind tunnel testing was used in styling the exterior of the Ram SRT-10. The SRT-10 featured an 8.3 litre (Chrysler 8.3 L Viper V10) V10. This engine produced 500 bhp (373 kW; 507 PS) at 5,600 rpm and 525 lb⋅ft (712 N⋅m) of torque at 4,200 rpm. It reached a top speed of 154 mph (248 km/h), and could accelerate from 0 to 60 mph (97 km/h) in 4.9 seconds. In July 2004, a Dodge Ram SRT-10, driven by NASCAR driver Brendan Gaughan set both the Guinness World Record and Sports Car Club of America’s record for the world’s fastest production truck with an average speed of 154.587 mph (248.784 km/h).