After two stellar performances at the long-distance races in Daytona and Sebring, Porsche Penske Motorsport now switches to sprint mode. Round three of this season’s IMSA WeatherTech SportsCar Championship in Long Beach is one of the two shortest races of the year.After two stellar performances at the long-distance races in Daytona and Sebring, Porsche Penske Motorsport now switches to sprint mode. Round three of this season’s IMSA WeatherTech SportsCar Championship in Long Beach is one of the two shortest races of the year.