The Ram SRT-10 is a high performance variant of the Third Generation Dodge Ram, and was introduced for the 2004 model year. 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 liter (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. Production of the Dodge Ram SRT-10 lasted until 2006, with 10,046 examples built.