There's Something About Paulie - S2-E16
Deliberate mistake: At the dealership, Lois pops the hood of the red car and shows there is no engine in the vehicle. She pulls out a paper that just has a drawing of an engine. Yet moments later, Peter is able to start the car and rev a nonexistent engine and drive it a couple of feet before the wheel falls off. (00:02:40)





Chosen answer: It's a real song called "Elvira". Originally by Dallas Fraizer in '66, however, this version seems to be the Oak Ridge Boys cover version. However, the mega lesbians skip the verse and just sing the chorus after the opening line.
Bishop73