Picture of the Day. 8/28/2008
The Dodge Viper ACR.
The 2008 model also sees the return of the Viper ACR. The Viper SRT-10 ACR features track based upgrades, such as functional aerodynamic additions, adjustable suspension, racing brakes, and Michelin Pilot Sport Cup tires. Weight is also decreased by as much as 80 lb (36 kg) by way of the “Hardcore Package” which deletes radio, speakers, amplifier, trunk carpet, hood pad and tire inflater. The weight loss is not a lot considering the base Viper’s 3460 lb (1569 kg) weight, but it is enough to make a difference in performance. The ACR should be one of the fastest street cars available upon its 2008 release. Its aerodynamic upgrades produce 1000 lbf (4.4 kN) of down-force at 150 mph (240 km/h), or roughly 10 times the downforce the stock Viper can produce at 150 mph. Other handling improvements include a set new tires and a modified suspension. Braking distance should be just as impressive, thanks to slotted two piece StopTech rotors. For comparison, the 2003 Dodge Viper was capable of stopping from 100 mph (160 km/h) in 274 ft (84 m) on run flat tires. Although the Viper ACR is street legal, it is clearly meant for track use. No upgrades were given to the interior except for the addition of a professional beacon-tripped lap timer.
Road and Track tested the car against the stock Viper and regular and track version of the Lamborghini Gallardo (Gallardo Spyder and Superleggera) and Porsche 911 (Carrera S and GT3 RS) at Willow Springs in its “Evil Twins” comparison. The ACR was the undisputed winner of the test with a lap time of 1:29.33 which was three seconds faster than the second place car, which turned out to be the stock Viper SRT-10.
Further testing has shown that the ACR is among the fastest street legal cars ever produced. The Porsche 911 GT2 has been a popular comparison benchmark in many magazine tests, and as of yet, the Viper has set the faster lap times in every case. The ACR is also currently the fastest production car around the Nurburgring Nordschleife with a time 7:22.1.
Source: Wiki
Damn sexy