The bridge between old and new.
What the 964 changed
In 1989, Porsche launched the 964 — internally the Type 964, marketed as the 911 Carrera 4. From the outside it still looked like a 911: long hood, narrow waist, fastback rear. But underneath, it was an essentially new car.
The body got integrated bumpers — no more black rubber accordion seams between bumper and fender. The lines smoothed. Turn signals stayed in the bumper modules but were now flush with the bodywork. The whole nose looked tighter and more modern.
The suspension was new. The semi-trailing arms and torsion bars that had been the 911 standard since 1964 were replaced with MacPherson struts and coil springs all around. ABS became standard. Power steering became standard. The car was finally pulled into the late 1980s on its mechanical specification.
The engine
The 964 used a 3.6-liter air-cooled flat-six, derived from the 3.2 Carrera engine but with new cylinder heads, a different valvetrain, and twin-spark ignition. Output: approximately 250 horsepower. Bosch Motronic 2.1 engine management. The engine had a noticeably different character from the 3.2 — broader torque curve, more refined power delivery, smoother at idle.
The 964 introduced all-wheel drive to the 911 lineup as the Carrera 4. The rear-wheel-drive Carrera 2 followed in 1990. The split was the start of a model strategy that has stayed with the 911 ever since.
The variants
- Carrera 2 / Carrera 4 (1989-1994)
- The base cars. C2 rear-wheel drive, C4 all-wheel drive. Coupe, cabriolet, and Targa bodies.
- Turbo (3.3, then 3.6) (1991-1994)
- The 930 successor. Used the older 3.3 engine through 1992, then a one-year-only 3.6-liter turbocharged variant in 1993-1994. The 3.6 Turbo is now one of the most collected 964 variants.
- RS America (1993-1994)
- United States-market version of the 964 RS. Lightweight options, but less aggressive than the European RS. About 700 made.
- Carrera RS (Europe) (1992)
- The Europe-only homologation lightweight. Stripped interior, aluminum hood, no sunroof, stiffer suspension. About 2,400 built. The 964 RS is now the most sought-after rear-drive 964.
- Speedster (1993-1994)
- Open-top, low-cut windshield, tonneau cover behind the seats. About 936 built across two years.
Reliability — the head studs
The 964 has one famous Achilles heel: the head studs. The dilavar studs used to clamp the cylinder heads to the engine cases were prone to fatigue and breakage, particularly in early production cars. A failed head stud means the head gasket loses seal, which means the engine starts losing oil and combustion pressure. The fix is expensive — the engine has to come out.
Cars that have had their head studs replaced with later-spec items are now sought after. Cars that still have original early-production studs are inspected carefully.
Why the 964 matters
The 964 is the chassis that took the 911 from being a relic of the 1960s into a car that could compete with the modern sports cars of the early 1990s. ABS, power steering, coil springs, all-wheel drive option, modernized engine management — all introduced in one generation.
The 993 that came next is widely considered the peak of the air-cooled 911. But the 964 is the chassis that made the 993 possible. Without it, the air-cooled era would have ended ten years earlier.