Grand Prix Trois-Rivières - Ultra 94 Porsche GT3 Cup Challenge Canada by Yokohama
Ultra 94 Porsche GT3 Cup Challenge Canada by Yokohama

The Ultra 94 Porsche GT3 Cup Challenge Canada by Yokohama is in its seventh season in 2017, producing exciting competition for semi-professional and aspiring professional drivers in the Porsche 911 GT3 Cup race car, and the new Porsche Cayman GT4 Clubsport.

Racing in the IMSA-sanctioned series is divided into three classes - Platinum Cup, featuring the 2014-16 model Porsche 911 GT3 Cup car; Gold Cup, which is comprised of model years 2010-2013 of the race car; and the Silver Cup class consisting of competitors in the new Cayman GT4 Clubsport race car.

 
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