These days cars are engineered with specific powertrain options in mind, but back in the day, automakers would sometimes let customers pick whatever engine they wanted. That's how the muscle car was born: take an ordinary vehicle, option the right engine and presto! you've got yourself a muscle car. That's how the original Dodge Challenger
got its reputation. Joining the market late in the game, the Challenger was available with just about any motor in Chrysler
's parts bin.