The historic Sunoco and yellow RS Spyder designs made a comeback to the now six-hour race
This year at Road America, Porsche Penske raced down memory lane sporting legacy liveries. In 1973, the Sunoco livery’s driver Mark Donohue famously broke the two-minute lap time, coming in three seconds ahead of the next car on this very track. In 2007, the yellow RS Spyder livery saw 14 class victories and defeated its more powerful LMP1 competitors.