According to Jim Episode 2.02 Cars and Chicks

Dana needs to buy a new car and Cheryl offers to go with her, but Jim says chicks are no good buying cars by themselves, because they'll get distracted with other less important things like mirrors or cup holders. Offended, Cheryl is determined to prove Jim wrong and actually gets Dana a car for a fair deal, but the car soon breaks down. Jim takes over the situation and goes down the dealership to manly handle the situation and deal with the salesman. The only thing he wasn't counting on was a very seductive female manager, who convinces Jim to trade in his minivan for a brand new sports car. Cheryl and Dana try to undo the deal, but they have no luck either. Jim and Andy return determined to overcome Gretchen's looks, but Mike Ditka's presence ruins it for them.