1987 Mazda Advertisement, "Introducing the New Mazda RX-7 Turbo"

Mazda built its RX-7 sports car across three generations from 1978-2002. Each version featured a Wankel rotary engine for power. Instead of conventional reciprocating pistons, the rotary powerplant used an eccentric rotor to convert internal combustion power into motion. Though compact and lightweight, rotary engines tended to be less fuel efficient. Available turbochargers boosted the RX-7's horsepower.