As usual, Leno is a fountain of knowledge about the history of the vehicles in his collection, including an explanation of why nearly every Mercer is yellow and black. Perhaps more interesting than the drive is watching the start-up sequence on a vehicle that's now over 100 years old. All the steps are essentially the same as a modern car, but Leno has to do them all by hand. While the Raceabout was undoubtedly fast for its era, it wasn't going to make any quick getaways from a cold stop.
Unfortunately, the major downside to this clip is that wind noise drowns out any chance of hearing the engine at speed, due to the entirely open cabin. Still, Leno offers an opportunity to learn more about America's sportscar roots.