Porsche returns to the 24h of Le Mans, and presented a very good reason for Audi to pay them a visit with the Audi R18 e-tron quattro and to welcome them in their very own way. The upcoming rivalry is unparalleled, with Porsche having won Le Mans 16 times but hasn't done so since 1998 while Audi has won 12 times and has lost twice since 2000.