20. Ford Flathead V8
The 1932 Ford came with one of the best engines of the 20th century. It was Ford’s simple-but-effective 3.6-liter V8 engine with just 65 HP at the beginning of production. Even though other carmakers offered V8 engines for their models, Ford’s design proved to be the toughest.

Soon, it became the definitive engine for anybody looking for power in an affordable package. In fact, when hot rodders found out that the Flathead V8 had serious tuning potential, the ’32 Ford became the favorite base for all kinds of modifications. The 1932 Ford with the Flathead V8 engine is one of the most revolutionary and important cars in automotive history. It introduced V8 power to a larger market, establishing the V8 as one of the most recognizable features in the car industry.