This is Audi's new "long tail" R18 Le Mans racer taking a corner flat out at 212 miles an hour. It sounds like a faraway jet fighter and it looks like nothing you've seen.
Axis of Oversteer posted this part of Audi's testing before the 24 Hours of Le Mans this summer. To simulate the speeds of the endless Mulsanne Straight, Audi got Monza to open up their end-of-straight chicane. This meant the R18 could enter the infamous Curva Grande without even lifting, somewhere between 205 and 212 miles an hour.
No F1 car is allowed to be anywhere near as fast here.