More LMP3 cars have been sold for the relaunched IMSA Prototype Challenge presented by Mazda series that will debut next year. Its new PC1 class, which will use LMP3 cars powered by spec V8 engines, stoked particular interest when it was announced at Road America in August.(UPDATE: RACER learned on...

The International Motor Sports Association (IMSA) and Yokohama Tire Corporation have expanded their partnership to include Yokohama serving as the official tire provider and presenting sponsor of the Ultra 94 Porsche GT3 Cup Challenge Canada by Yokohama, starting with the 2016 season.Competitors in the Porsche GT3 Cup Challenge series in...

Subtitle:Increased Commitment, Activation Of Porsche GT3 Cup Challenge USADAYTONA BEACH, Fla. (Sept. 21, 2015) – The International Motor Sports Association (IMSA) and Yokohama Tire Corporation have reached a multi-year agreement to extend their partnership, with Yokohama continuing as the official tire provider and series sponsor for the Porsche GT3 Cup...

Veteran motorsports official Randy Hembrey has been named as senior series manager, Development and Single-Make Series for the International Motor Sports Association (IMSA).Chicago native Hembrey will be responsible for all facets of management and day-to-day operations of the Cooper Tires Prototype Lites Powered by Mazda, Porsche GT3 Cup Challenge USA...