In Super Grand Sports, Powell Motorsports has emerged as the team to beat as they have won five of the seven races this year. Team drivers Doug Goad and Devon Powell have both shown signs of dominance on their way to the five wins, as they have helped push General Motors into a nine point lead in the Manufacturer Championship over Porsche.

While the Super Grand Sports class started out very strong at the beginning of the year, the three race weekends in a row (Mosport, Virginia, and Road America) have dropped the number of entries in the high horsepower class. At Road America, the final event in the three-race stretch, Powell will be faced with competition from five other cars.

The Porsche TT from Motorsport Technologies challenged Goad late in the Virginia race but came up short at the end of the race as Ian James could not get enough out of his Porsche to challenge Goad in the final moments of the race.

TFRacing will be back strong with two Saleen SRs. Both cars suffered from bad luck at Virginia as the #44 DURA Racing Saleen had problems on the first lap, and the #47 Zippo Saleen's two drivers suffered from extreme heat inside the cockpit.

The Ford Mustang from Donacaster Racing is entered although it suffered some major damage at Mosport, the first race in the three race stretch.