Coming off of the momentum from our 2013 #GrandAm GX Manufacturers Championship win, we are pleased to announce that we will be participating in the top Prototype Class for the 2014 TUDOR United SportsCar Championship Series #USCR. After nearly two years of planning, #Mazda #Motorsports will field a pair of factory-backed SKYACTIV®-D Smart #Diesel-powered #racecars, starting at the #Rolex24 at Daytona on January 25-26, 2014. #NeverStopChallenging