The Quad 4 ran a little rough and uncivilized, and it had its share of reliability problems, but you could rev the piss out of it and it made good power. In 1991, this engine was rated at 180 hp.

With a 190-hp Quad 4 engine and a five-speed manual ... This 1992 Oldsmobile Achieva SCX is for sale on Bring a Trailer (which, like Car and Driver, is part of Hearst Autos), and that three ...