Chrysler has released new details about the 2013 SRT Viper GTS-R, ahead of its racing debut at the American Le Mans Series Mid-Ohio race on August 4th.

The company will field two GT-class models which are "moderately modified" versions of the production car. They were jointly-developed with Riley Technologies and feature an aerodynamic body kit with new bumpers, a revised hood and a prominent rear wing. Despite the styling similarities, class restrictions ensure the GTS-R has to weigh at least 2,745 lbs (1,245 kg), can only produce 450-500 hp (336-373 kW / 456-507 PS) and can only hit a top speed of 180 mph (290 km/h).

It remains unclear how the limitations will affect the Viper, but it will have to battle the Aston Martin Vantage, BMW M3 GT, Corvette C6.R, Ferrari F458 Italia, Lotus Evora and Porsche 911 GT3 RSR.

Gallery: 2013 SRT Viper GTS-R can only hit 180 mph

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