Stevenson Motorsports took a giant step towards the 2015 Continental Tire SportsCar Challenge Grand Sport (GS) championship at Circuit of The Americas, with Robin Liddell and Andrew Davis taking their fourth victory of the season to open up a wide advantage with only one race remaining.Team manager Mike Johnson gambled...

LAKEVILLE, Conn. (July 27, 2015) - Mantella Autosport's Kyle Marcelli and Martin Barkey wielded the No. 80 MBRP Inc. Camaro Z/28.R to a sixth-place finish overall July 25 at Lime Rock Park.The IMSA Continental Tire SportsCar Challenge race featured few yellow flags and short cautions, a rarity on the 1.5-mile,...