On tonight's Late Show, Bill O'Reilly spent the majority of the hour chatting with David Letterman about a range of topics. The most entertaining bit? O'Reilly and Letterman—who owns one!—yelling about how much electric cars suck. Watch inside.

David Letterman really likes to hold a grudge, doesn't he? Tonight, Letterman went on a completely random aside about January's Late Night Wars, and once again ripped into—and impersonated—Jay Leno, calling Leno's "regular guy" act BS. Video inside.