Mercer Motorsports 2009 Porsche GT3 CupGGR Members Todd Grantham, Johannes van Overbeek, and Rich Walton teamed with Jon Fogarty and Tommy Sadler in the Mercer Motorsports Porsche GT3 to take first overall in the 25 Hours of Thunderhill this year. Congratulations to them and all the other GGR members who drove and crewed (too numerous to mention here). Photos courtesy of David Leong.