With only a few moving parts -- two-strokes lack complex valvetrains ... Chevrolet managed to sell tens of thousands of its air-cooled VW Beetle-fighting Corvairs between 1960 and 1969.

For decades, the massively popular Volkswagen Type-1 Beetle and the Type-2 VW Microbus or Transporter were powered by a unique air-cooled boxer engine. The Volkswagen air-cooled engine is ...

Introduced in 1957 as a counterpart to the West German VW ... of parts to assemble have helped the engine remain reliable. Thanks to its relatively simple design, Harley-Davidson's air-cooled ...