Audi’s R18 line of Le Mans prototype racers have been with us since the 2011 motorsport season, gaining gradual updates with each new season of the World Endurance Champion to ensure the oil-burning endurance racers remain the cream of the crop. Last year, the R18 saw its biggest threat when both Porsche and Toyota had top-level endurance…
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First Look At 2015 Audi R18 e-tron quattro Le Mans Prototype