My 2008 Dodge Viper ACR is 1 of 3 in this color combination. There are approximately 300 ACRs in this Generation IV model. The ACR package includes street legal racing tires, two piece brake rotors, adjustable suspension, and significant aerodynamic revision. No engine modifications were made, so figures remain at 600 hp (448 kW) and 560 lb·ft (760 N·m) as in the base car. The ACR gives an advantage of being street legal. The ACR is similar to the MOPAR Viper that Dodge displayed at various auto shows. The aerodynamic upgrades produce 1000 lbf (4.4 kN) of down-force at 150 mph (240 km/h), or roughly 10 times the downforce the base Viper SRT-10 can produce at the same speed.
The generation IV Viper SRT-10 ACR currently holds the fastest Nürburgring lap time set by a production car with a time of 7:22.1.
