IMSA Petit Le Mans Winner Brendan Hartley returned to The Freak Nation Sunday night after getting an important win at Petit Le Mans. Hartley is also one of the fastest in the World Endurance Championship where he’s a Porsche Factory driver. He returns to the WEC next weekend in Japan. So, what’s he think about comparing the WEC to IMSA? And IndyCar in 2018? Listen…