The new Dodge Viper ACR (American Club Racer) street-legal race car is available in USA from September, and will be fitted with specially designed Kumho Ecsta V720 tyres in sizes 295/25ZR19 (front) and 355/30ZR19 (rear). Dodge claims the tyres provide the largest combined contact patch of any production car, having been designed and developed specially for the Viper ACR. The tyres, which feature unique tread patterns and compounds, have achieved lap times up to 1.5 seconds faster than benchmark race tyres used for back-to-back testing. They allow sustained cornering loads of up to 1.5g, Dodge adds.