Ranking the most impactful and unforgettable engines of the 21st century so far, with real data and the performance stories gearheads love.

Automotive technology has advanced quite a bit since the days of Carl Benz's Patent Motorwagen and the one-cylinder engine. The Ford L-head T-4 that powered the Model T helped that car bring ...

Car companies often integrate engines from other manufacturers to leverage specialized expertise, cut costs, and meet stringent regulatory standards, and it usually works out for the best. One example ...