The Pontiac-Oakland Automobile Museum is a neat fit for a city named Pontiac, even if the car brand was named for the Ottawa leader rather than the Illinois town. The museum focuses on Pontiac and Oakland automobiles, with classic cars, dealer signs, brochures, and design material.
You do not need to be a mechanic to enjoy it, but car people will get more from the details. Pair it with the Route 66 museum for the strongest version of a Pontiac stop.