Hot rods are typically old, classic American cars with large engines modified for linear speed. The origin of the term "hot rod" is unclear. Roadsters were the cars of choice because they were light, were easy to modify, and could be bought for a low price.
Muscle car is a term used to refer to a variety of high-performance automobiles. The Merriam-Webster dictionary defines muscle cars as "any of a group of American-made 2-door sports coupes with powerful engines designed for high-performance driving."
A truck (US, CA, AU, NZ) or lorry (UK and Ireland) is a motor vehicle designed to transport cargo. Trucks vary greatly in size, power, and configuration, with the smallest being mechanically similar to an automobile.