The AACA Museum gives Hershey a strong stop for anyone whose idea of history includes chrome, tailfins, buses, motorcycles, and old road-trip machinery. The collection is broad rather than precious, which makes it approachable even if you are not a serious car person.
It pairs well with Hersheypark or the chocolate sights because it offers a different kind of nostalgia. Allow more time than you expect; the museum works best when you slow down and notice the design details, advertising, and travel culture wrapped around the vehicles.