Porsche 964, Complete History

The 911 That Saved Porsche

By the mid-1980s, the Porsche 911 was in trouble. The car that had defined the company since 1963 was fundamentally the same machine it had always been: air-cooled, rear-engined, torsion-bar sprung, and increasingly anachronistic in a world of water-cooled, front-engined sports cars. Porsche’s own product plan reflected this reality. The 928, a front-engined, water-cooled V8 grand tourer, had been intended to replace the 911 entirely. The 944, a front-engined four-cylinder sports car, was outselling the 911 by a significant margin. Within Porsche, there were serious voices arguing that the 911 should be allowed to die.

It did not die. Instead, it was comprehensively reinvented. The car that emerged, internally designated Type 964, was 87% new compared to the outgoing 3.2 Carrera, yet it retained the silhouette, the proportions, and the essential character that had made the 911 an icon. The 964 proved that the 911 concept still had life in it, that a rear-engined, air-cooled sports car could be modern, safe, and competitive. It saved the 911, and in doing so, it saved Porsche.

Development

The 964 programme was led by Dr. Ulrich Bez, who would later become CEO of Aston Martin. The brief was ambitious: bring the 911 into the modern era without destroying what made it special. Every major system was redesigned.

The engine was the most significant change. The new M64 flat-six displaced 3,600 cc (up from the 3.2 Carrera’s 3,164 cc) and produced 250 hp at 6,100 rpm and 310 Nm of torque at 4,800 rpm. It retained the air-cooled, horizontally opposed six-cylinder layout that had defined the 911 engine since 1963, but almost everything else was new. The crankcase was a new design in magnesium alloy. The cylinder heads were revised with improved combustion chambers. The Bosch DME (Digital Motor Electronics) engine management system replaced the older CIS mechanical fuel injection, providing more precise fuel metering and ignition timing. Dual-plug ignition (two spark plugs per cylinder, twelve total) improved combustion efficiency and cold-start behaviour. The M64 was the culmination of three decades of air-cooled development, the most powerful, most refined, and most efficient air-cooled flat-six Porsche had ever built.

The suspension was completely new. The torsion bars that had sprung every 911 since 1963 were replaced with coil springs and MacPherson struts at the front and a semi-trailing arm design with coil springs at the rear. The new suspension was a revelation: the ride was more composed, body control was better, and the 911’s traditional twitchiness at the limit was tamed (though not eliminated). The new suspension also allowed for a lower ride height, improving the car’s centre of gravity and aerodynamic profile.

Power steering, a first for the 911, was standard equipment. ABS braking was standard. A driver’s airbag was fitted. Air conditioning was available. The 964 was, for the first time, a 911 that a normal driver could exploit with confidence.

The body, while visually similar to the outgoing Carrera, was extensively revised. The front and rear bumpers were integrated into the body and colour-coded, replacing the separate rubber-mounted bumpers of the previous generation. The front spoiler retracted automatically at speeds below 80 km/h (it would rise at higher speeds to reduce front-end lift). The rear featured an electrically operated whale tail spoiler. The aerodynamic package reduced the drag coefficient to 0.32, a significant improvement over the older car. The body was fully galvanised, a first for the 911, providing comprehensive corrosion protection.

Launch: The Carrera 4 (1989)

Porsche made an unusual decision for the 964’s launch: the first variant released was not the traditional rear-wheel-drive Carrera, but the all-wheel-drive Carrera 4. The C4 debuted at the Paris Motor Show in January 1989 and went on sale later that year as a 1989 model.

The decision to lead with AWD was partly marketing (all-wheel drive was the technological talking point of the era) and partly practical (Porsche wanted to demonstrate that the 911 could match the Audi Quattro and Mitsubishi Galant VR-4 for all-weather capability). The C4’s AWD system distributed power 31% front, 69% rear under normal conditions, with the ability to shift up to 100% to either axle via a hydraulically controlled multi-plate clutch. The system was complex and added approximately 75 kg to the car’s weight, but it provided a level of wet-weather security that no previous 911 had offered.

The Carrera 4 was well received by the press and the market. It proved that the 911 could be modern without losing its soul. Critics praised the new engine, the improved ride quality, and the confidence-inspiring AWD system, while noting that the traditional 911 driving experience, the rear-engined character, the communicative steering, the addictive flat-six note, was intact.

The Carrera 2 (1990)

The rear-wheel-drive Carrera 2 arrived for the 1990 model year and quickly became the preferred choice for driving enthusiasts. Without the C4’s AWD hardware, the C2 was lighter (approximately 1,350 kg versus 1,450 kg for the C4), had more communicative steering, and offered a purer driving experience. The rear-wheel-drive 911 was the 911 that enthusiasts knew and loved, and the C2 was a dramatically better version of it.

The C2 was also available with the Tiptronic automatic gearbox, a first for the 911. The 4-speed Tiptronic offered a manual mode (tipping the gear lever left or right to select ratios) and was aimed at buyers who wanted the 911 experience without a clutch pedal. The Tiptronic was a mixed success: it made the 911 more accessible, but it was slow to shift, sapped performance, and was never embraced by the enthusiast community. Manual C2s outsold Tiptronics by a considerable margin.

Both C2 and C4 were available as coupe, Targa, and cabriolet. The Targa retained the traditional removable roof panel, and the cabriolet featured a fully automatic power-operated soft top.

The Turbo (1991-1994)

The 964 Turbo arrived for the 1991 model year and initially featured the 3.3-litre turbocharged engine that had powered the 930 Turbo since 1978. This engine, internally designated M30/69, produced 320 hp and 450 Nm of torque. It was mated to a 5-speed manual gearbox and drove the rear wheels only. The wide body, massive rear wing, and flared wheel arches announced the Turbo’s intentions. It was fast (0-100 km/h in 5.1 seconds), loud, and dramatic.

The 3.3-litre Turbo was a known quantity, an evolution of an engine that had been in production for over a decade. The single turbocharger produced noticeable lag below 3,500 rpm, followed by a savage rush of boost that demanded respect and skill to manage. The 964 Turbo’s improved suspension and ABS brakes made it more approachable than the old 930, but it remained a car that punished overconfidence, particularly in the wet.

For the 1993 model year, Porsche replaced the 3.3-litre engine with the new M64/50, a 3.6-litre turbocharged version of the standard Carrera engine. Power climbed to 360 hp and torque to 520 Nm. The 3.6 Turbo was a revelation: it retained the dramatic character of the turbo 911 but delivered its power with more refinement, less lag, and greater tractability. The 0-100 km/h time dropped to 4.8 seconds.

Only approximately 1,437 units of the 3.6 Turbo were produced across all markets before the 964 production ended in 1994. This scarcity, combined with the engine’s reputation as one of the finest single-turbo air-cooled units Porsche ever built, has made the 964 Turbo 3.6 one of the most valuable and sought-after 964 variants.

A small number of Turbo S models were also produced (approximately 86 units), featuring 381 hp and lightweight body panels. The Turbo S is among the rarest and most collectible modern Porsches.

The RS (1992)

The 964 Carrera RS, launched in 1992, was built to homologate the Carrera Cup race car. It was the most focused, most extreme 964 variant, and it established the template for the RS models that would follow in the 993, 996, and 997 generations.

The RS used a revised version of the M64 engine, designated M64/03, with modified intake camshafts, a revised DME engine map, a lighter flywheel, and a free-flowing exhaust. Power was 260 hp at 6,100 rpm, a modest increase over the standard Carrera’s 250 hp, but the real difference was in the way the power was delivered: the RS engine revved more freely and responded more crisply than the standard unit.

The weight reduction programme was comprehensive. The interior was stripped of sound deadening, carpets, rear seats, electric window mechanisms, and air conditioning. Manual windows replaced the electric units. The glass was thinner. The bonnet was aluminium. The body seam sealer was removed where structurally permissible. The result was a kerb weight of approximately 1,220 kg, some 130 kg lighter than a standard C2 coupe.

The suspension was lowered by 40 mm and stiffened with firmer springs and dampers. The anti-roll bars were thicker. The wheels were 17-inch Cup Design alloys (7J front, 9J rear) wearing 205/50ZR17 and 255/40ZR17 tyres. The brakes were the standard Carrera units with uprated pads.

The RS was a raw, focused, magnificent driving machine. The noise, the directness, the lack of insulation between driver and car, created an intensity that the standard Carrera could not match. Approximately 2,282 RS coupes were produced (Euro-spec), along with small numbers of the RS Touring (which retained some creature comforts) and the RS 3.8 (a wider-bodied, 300 hp variant built in very limited numbers).

The RS America (1993-94) was a separate model for the US market. Less extreme than the European RS, it retained the standard engine (250 hp), standard glass, and a simplified but not fully stripped interior. Approximately 701 were built. The RS America is a compelling driver’s car in its own right, though it lacks the European RS’s raw intensity.

The Speedster (1993-1994)

The 964 Speedster was a nod to the iconic 356 Speedster and the earlier 3.2 Carrera Speedster. It featured a dramatically raked windscreen (lower than the standard cabriolet’s), a manually operated soft top that folded behind the seats under a distinctive humped tonneau cover, and the Carrera 2’s mechanicals.

The Speedster was available in two configurations: the standard narrow body and the wide body (using the Turbo’s flared guards, marketed as “Turbo Look”). Both used the 250 hp M64 engine and 5-speed manual gearbox. Approximately 936 Speedsters were produced across both body styles, making it one of the rarer 964 variants.

The Speedster was a style statement rather than a performance car. The low windscreen created significant buffeting at highway speeds, and the manual top was more ceremony than convenience. But as a piece of Porsche design, it was stunning, and values have reflected its visual impact and rarity.

Year-by-Year Evolution

Year	Key Changes
1989	Carrera 4 launched. 3.6L M64 engine, 250 hp. Coil spring suspension, ABS, power steering, airbag. Available as coupe, Targa, cabriolet
1990	Carrera 2 (rear-wheel drive) introduced. Tiptronic automatic available on C2. C2 and C4 coupe, Targa, cabriolet
1991	Turbo introduced with 3.3L M30/69 engine, 320 hp. Wide body, rear-wheel drive, manual only. Revised engine management for C2/C4
1992	Carrera RS launched (Euro market). 260 hp, stripped interior, 1,220 kg. Updated chain tensioner components phased in across the range
1993	Turbo 3.6 replaces Turbo 3.3 (360 hp). Speedster introduced (narrow and wide body). RS America launched for US market. Turbo S produced in limited numbers (approx. 86 units)
1994	Final year of 964 production. Last cars built in early 1994. Replaced by the Type 993

Production Numbers

Variant	Approximate Production
Carrera 2 (all body styles)	~35,000
Carrera 4 (all body styles)	~13,300
Turbo 3.3	~3,660
Turbo 3.6	~1,437
Turbo S	~86
Carrera RS (Euro)	~2,282
RS America	~701
Speedster	~936
Total (all 964 variants)	~63,762

Motorsport

The 964 had a significant motorsport presence, primarily through the Carrera Cup series and the 964 RSR.

The Porsche Carrera Cup, launched in 1990, was a one-make racing series using near-standard 964 Cup cars. These cars were based on the Carrera RS but further prepared for racing: a roll cage, racing seat, fire suppression system, adjustable suspension, and a slightly more powerful engine tune. The Carrera Cup ran as a support series to major touring car and Formula 1 events in Europe and provided a direct pathway for gentlemen drivers into professional Porsche motorsport. The series established a template that continues to this day.

The 964 RSR was the factory competition car, built in very small numbers for customer teams. The RSR featured a 3.8-litre engine producing approximately 350 hp (naturally aspirated), a wide body, massive brakes, and full racing preparation. RSR models competed in GT racing worldwide, including the 24 Hours of Le Mans, the 24 Hours of Daytona, and the 12 Hours of Sebring.

The 964 Turbo S Le Mans GT was a one-off factory car built for the 1993 Le Mans 24 Hours. It demonstrated the potential of the 964 platform at the highest level of endurance racing.

In Australia, 964 Cup cars and RS models were campaigned in various GT and production car series during the early to mid-1990s. The Porsche Club of New South Wales and Porsche Club Victoria organised regularity and sprint events where 964s were competitive and popular.

Legacy

The 964 occupies a pivotal position in Porsche history. It proved that the 911 could evolve without losing its identity, that air cooling, a rear engine, and a flat-six could coexist with modern expectations of refinement, safety, and performance. Without the 964’s success, there would have been no 993, and the 911 might well have been replaced by the 928.

The 964 also perfected the air-cooled formula. The M64 engine is widely regarded as the finest expression of Porsche’s air-cooled flat-six: powerful, characterful, and, when properly maintained, durable. The combination of this engine with the 964’s coil-spring suspension and power steering created a car that was both more capable than any previous 911 and more accessible to a wider range of drivers.

For a generation of enthusiasts, the 964 was the car that proved the 911 still mattered. It arrived at a time when the automotive world was moving decisively toward water cooling, front engines, and electronic intervention. The 964 pushed back against all of those trends, demonstrating that the original 911 concept, reimagined with modern engineering, was not just viable but extraordinary.

Today, the 964 is recognised as a landmark car. Values have climbed dramatically since the mid-2010s as the market has identified the 964 as the most accessible entry point to the air-cooled 911 experience, a car modern enough to drive confidently, analogue enough to reward skill, and characterful enough to matter. The 911 that saved Porsche is now saving itself, its place in history secure.