Those classes will combine in Saturday’s one-hour, 40-minute race, the fifth event of the season.
GTD is a combination of two previous classes: GT from the Rolex Series and GTC from the ALMS, as well as select GT3-spec machines. It has produced as expected, with large fields and close racing that is attractive to both core and casual fans, in large part because the cars raced are also the cars you can see on the streets — with the requisite modifications, of course.
And while the class may have a “made-in-America” label, GTD is a showcase this season for European excellence, with Ferrari, Porsche, Audi and BMW occupying the top 10 spots in the team championship standings. The first American machinery is the No. 33 SRT Viper team fielded by Riley Motorsports, currently 19th in points.
The GTD manufacturer points have Ferrari in front with 95, followed by Porsche (95), Audi (94), BMW (91) and SRT (52).
The driving championship is co-led by Ferrari drivers Townsend Bell and Bill Sweedler and Porsche drivers Andy Lally and John Potter, with 87 points. Third with 83 points are Audi drivers Nelson Canache Jr. and Spencer Pumpelly, who are coming off the crushing disappointment of dominating the preceding race at Mazda Raceway Laguna Seca, only to have their No. 45 Venezuela/eSilicon Audi R8 LMS run out of gas on the final lap with Pumpelly at the wheel.