The Simpsons S19 E13 The Debarted

"Just a product of society that's lost its good manners."

A new kid at school named Donny works with Bart on his pranks. But when the pranks start to backfire, Bart wonders if he can trust his new accomplice. Meanwhile, the Simpsons get a fancy loaner car after Marge gets in an accident, and Homer falls in love with it.