There are some who might say an RS4 isn't a supercar. There are also some that watched Alberto Gonzales testify to Congress last week and then publicly proclaimed that he did a good job. All we know is that an M5 is a supercar, and this Audi smokes it. She can drive us to practice anytime.

Related:
Supercar Weekend: Get in Touch With Your Inner 12-Year-Old [Internal]