Skip Barber MAZDASPEED Pro Challenge champ moves to Battery Tender Mazda MX-5 Cup with Mazda scholarship. In a bid to win the 2015 SCCA Pro Racing Battery Tender Mazda MX-5 Cup Presented by BFGoodrich Tires championship, Sick Sideways Racing strengthened its driver line-up by signing 2014 MAZDASPEED Pro Challenge champion...