Plenty of passing with Gen 6 car in Las Vegas

NASCAR's new Gen-6 Sprint Cup race car racked up some impressive statistics in Sunday's race. The official race reports reads 22 lead changes among eight drivers, with the 22 lead changes being the most at Las Vegas since 2007, the year before the Gen-5 car (Car of Tomorrow) was introduced at intermediate race tracks. Beyond those numbers, NASCAR's loop data (stats measured at the 10 scoring loops around the 1.5-mile track) showed a phenomenal 2,342 green-flag passes throughout the race, compared with 1,301 last year. In addition, there were 31 green-flag passes for the lead (including intra-lap passes scored at loops other than the finish line), the most since NASCAR started recording loop data in 2005. NASCAR Wire Service