Complex sentence: Homer test drives-and destroys-a new electric car so that he can get a free gift, which turns out to be free tickets to a preview screening of the new Mel Gibson film, a remake of "Mr. Smith Goes to Washington".
Split into simpler sentences: Homer test drives a new electric car so that he can get a free gift. His gift turns out to be free tickets to a preview screening of the new Mel Gibson film, a remake of "Mr. Smith Goes to Washington".