Mazda RX-7 SA22C (FB)
The first-generation Mazda RX-7, known internally as the SA22C (JDM) or FB (US market), was the car that proved the rotary engine could power a successful, mass-market sports car. Launched in 1978, it combined Mazda's proven Wankel technology with lightweight construction and excellent chassis dynamics to create one of the best affordable sports cars of its era.
The 12A twin-rotor engine displaced 1,146cc (equivalent) and produced 100 horsepower at 6,000 rpm in US specification. While not a headline figure, the engine was remarkably smooth and rev-happy, spinning eagerly to its 7,000 rpm redline with a turbine-like lack of vibration. The power delivery was linear and predictable, making the car accessible to drivers of all skill levels.
The RX-7's biggest advantage was its weight — or rather, its lack of it. At approximately 1,015 kg, the first-generation RX-7 was significantly lighter than its competitors, including the Datsun 280ZX and Porsche 924. This light weight, combined with a near-perfect 50/50 front-to-rear weight distribution, gave the RX-7 handling that was among the best in its class.
The chassis used MacPherson struts at the front and a live axle on a four-link arrangement at the rear. While the live rear axle was simpler than independent suspension, the RX-7's light weight and careful tuning meant that the rear end was well-controlled and predictable. The steering was direct and communicative, and the brakes — front discs, rear drums — were adequate for the car's modest weight.
The styling was distinctive and attractive, featuring pop-up headlights that gave the car a sleek profile when retracted. The fastback body was aerodynamically efficient, contributing to the car's respectable top speed and fuel economy (for a sports car). The interior was simple but functional, with supportive seats, clear instrumentation, and a leather-wrapped steering wheel.
The first-generation RX-7 was an enormous commercial success, selling over 474,000 units worldwide between 1978 and 1985. It established the RX-7 nameplate as a serious sports car competitor and proved that the rotary engine, despite its reputation for complexity, could be reliable and practical in daily service.
Rotary engine compression test is essential — measure each rotor face separately. Check for rust in lower fenders, rocker panels, and hatch area. The 12A engine is generally robust but apex seals wear over time. Pop-up headlight motors can fail. Original, unmodified examples are increasingly rare. GSL-SE variant (with 13B engine, 1984-85) is most desirable.
Produced at Mazda's Hiroshima factory from 1978 to 1985. Total first-generation (SA22C/FB) production was approximately 474,565 units across all markets. The car was sold in Japan, North America, Europe, and Oceania.