Find a used Lamborghini Countach for sale on the Classic and Performance Car site< The quattrovalvole engine regularly saw 470bhp on the dyno and Ferrari’s rival Testarossa felt slow by comparison.

The Lamborghini Espada, Islero, and Jarama would also be given the 3.9-liter V12 engine. They can't all be winners. The Countach also featured the 3.9-liter V12 engine, but later models ...