The IMSA GT3 Cup Challenge by Yokohama continues to give top semi-professional and gentlemen drivers from the United States and North America the opportunity to compete with such prestigious organizations as the American Le Mans Series and the Formula One in the world's most successful GT car - the Porsche 911 GT3 Cup racer. The race cars, based on the Porsche 911 body style, will have sealed engines and transmissions, providing for close racing where the driver's talents are exemplified. PMNA provides technical support for the IMSA series with personnel, parts and expertise both away from and at the track.