How to do a perfect donut: Step 1: Get a Cherrier Vivace S 410Q Arsenic. Step 2: Change the open differentials into limited slip for the front and rear. Step 3: Turn left or right and floor it. Side note: the S 410Q actually doesn't have 410 HP. It has 403 HP with the Sport Exhaust. When equipped with the Tuned Exhaust, it makes 409 HP.