'The Simpsons' Sneak Peek: Jay Leno Gets Animated for His Love of Cars

As a stand-up comedian, Jay Leno is accustomed to writing his own material, a skill that came in handy for his guest star stint on this Sunday’s episode of The Simpsons. OK, so the former Tonight Show host mostly left the gags to the Simpsons writers. But in this exclusive clip teasing his cameo, Leno reveals that he did do a polish on their car talk drawing on his own expertise as a serious antique automobile collector. (Check out his YouTube series, Jay Leno’s Garage, to see more of his obsession.)

In the episode, Leno stops by the Simpsons homestead to purchase the classic Morgan Motor Company vehicle that Homer has somehow gotten his mitts on. “I can tell the person who wrote it is not a car aficionado, because they had no idea what they were talking about,” he says, pointing to such mechanical blunders as a description of this particular Morgan having a “marble interior.” So Leno gave the original script a quick buff-and-polish, until it gleamed with total auto accuracy. Nice to know The Simpsons have an expert mechanic to call in whenever they need a car consultation.

The Simpsons airs Sundays at 8 p.m. on Fox.