The Porsche Cayenne (955) S 4.5 V8, produced from 2002 to 2006, represented Porsche’s ambitious entry into the luxury SUV market. This variant, equipped with a naturally aspirated 4.5-liter V8 engine producing 340 horsepower, was positioned as the performance-oriented mid-range model within the 955 generation Cayenne lineup, slotting between the base V6 and the higher-performance Cayenne Turbo. It aimed to deliver a blend of Porsche’s renowned driving dynamics and the practicality expected of a sport utility vehicle, appealing to buyers seeking a more engaging experience than traditional luxury SUVs offered at the time. The 955 generation was the first Cayenne, built on the Volkswagen Group’s PL71 platform, shared with the Volkswagen Touareg and Audi Q7.
Technical Specifications
| Brand | Porsche |
| Model | Cayenne |
| Generation | Cayenne (955) |
| Type (Engine) | S 4.5 V8 (340 Hp) |
| Start of production | 2002 |
| End of production | 2006 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban | 22.8 l/100 km (10.3 US mpg, 12.4 UK mpg, 4.4 km/l) |
| Fuel consumption (economy) – extra urban | 11.8 l/100 km (19.9 US mpg, 23.9 UK mpg, 8.5 km/l) |
| Fuel consumption (economy) – combined | 15.8 l/100 km (14.9 US mpg, 17.9 UK mpg, 6.3 km/l) |
| CO2 emissions | 380 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.8 sec |
| Acceleration 0 – 62 mph | 6.8 sec |
| Acceleration 0 – 60 mph | 6.5 sec |
| Maximum speed | 242 km/h (150.37 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 6.5 kg/Hp, 152.8 Hp/tonne |
| Weight-to-torque ratio | 5.3 kg/Nm, 188.8 Nm/tonne |
| Power | 340 Hp @ 6000 rpm |
| Power per litre | 75.4 Hp/l |
| Torque | 420 Nm @ 2500-5500 rpm (309.78 lb.-ft. @ 2500-5500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M48.00 |
| Engine displacement | 4511 cm3 (275.28 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 93 mm (3.66 in.) |
| Piston Stroke | 83 mm (3.27 in.) |
| Compression ratio | 11.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 8.5 l (8.98 US qt | 7.48 UK qt) |
| Coolant | 18 l (19.02 US qt | 15.84 UK qt) |
| Kerb Weight | 2225 kg (4905.29 lbs.) |
| Max. weight | 3080 kg (6790.24 lbs.) |
| Max load | 855 kg (1884.95 lbs.) |
| Trunk (boot) space – minimum | 540 l (19.07 cu. ft.) |
| Trunk (boot) space – maximum | 1770 l (62.51 cu. ft.) |
| Fuel tank capacity | 100 l (26.42 US gal | 22 UK gal) |
| Length | 4782 mm (188.27 in.) |
| Width | 1928 mm (75.91 in.) |
| Height | 1699 mm (66.89 in.) |
| Wheelbase | 2855 mm (112.4 in.) |
| Front track | 1647 mm (64.84 in.) |
| Rear (Back) track | 1662 mm (65.43 in.) |
| Drag coefficient (Cd) | 0.39 |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Coil spring |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs, 350 mm |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 255/55 R18 109Y |
| Wheel rims size | 8J x 18 |
Powertrain & Engine Architecture
The heart of the Cayenne S was the M48.00 engine, a 4.5-liter naturally aspirated V8. This engine featured a 90-degree V-angle, contributing to a smoother power delivery and reduced vibrations. It utilized a dual overhead camshaft (DOHC) valvetrain with four valves per cylinder, optimizing airflow for increased performance. Fuel delivery was managed by a multi-port fuel injection system, providing precise fuel metering. The engine produced 340 horsepower at 6000 rpm and 420 Nm (309.78 lb-ft) of torque between 2500 and 5500 rpm. The standard transmission for this variant was a six-speed manual, although a five-speed Tiptronic automatic transmission was also available, and quite popular among buyers. The automatic transmission offered a more relaxed driving experience, particularly in urban environments, but at the expense of some performance and fuel efficiency.
Driving Characteristics
The Cayenne S 4.5 V8 offered a noticeably more spirited driving experience than the base V6 model. The V8 engine provided ample power for confident acceleration and effortless highway cruising. While not as brutally fast as the Turbo model, the S delivered a satisfying blend of performance and refinement. The six-speed manual transmission allowed for precise control and engaged driving, while the optional Tiptronic automatic provided convenience and ease of use. The all-wheel-drive system, a standard feature, ensured excellent traction in various weather conditions. The automatic transmission, while smooth, did slightly dull the responsiveness compared to the manual, and its gear ratios were tuned more for comfort than outright performance.
Equipment & Trim Levels
The Cayenne S came standard with a relatively comprehensive list of features, including leather upholstery, automatic climate control, a premium sound system, and power-adjustable front seats. Optional extras included heated seats, a sunroof, navigation system, and upgraded interior trim materials. The Cayenne S was generally positioned as a well-equipped vehicle, offering a luxurious and comfortable interior. The exterior styling was relatively understated compared to the Turbo, with subtle badging and a more restrained appearance.
Chassis & Braking
The Cayenne S utilized a robust chassis with coil spring suspension at the front and an independent multi-link suspension at the rear. This suspension setup provided a comfortable ride while maintaining good handling characteristics. The braking system consisted of ventilated discs all around, providing ample stopping power. Anti-lock braking system (ABS) was standard. The suspension was tuned to balance comfort and handling, offering a more engaging driving experience than the base V6 model.
Market Reception & Comparison
The Cayenne S was generally well-received by automotive critics, who praised its powerful engine, engaging driving dynamics, and luxurious interior. However, some critics noted its relatively high fuel consumption and weight. Compared to the base V6 model, the S offered a significant performance upgrade, making it a more appealing option for drivers seeking a more engaging driving experience. Compared to the Turbo model, the S offered a more affordable price point, albeit with slightly less power and performance. The 1.8L automatic models were often criticized for their fuel economy, but were praised for their reliability and ease of maintenance.
Legacy
The Porsche Cayenne S 4.5 V8 remains a popular choice among enthusiasts and collectors today. The M48.00 engine is known for its reliability and durability, provided it is properly maintained. While the Cayenne 955 generation has aged, it continues to offer a unique blend of Porsche performance and SUV practicality. The availability of parts and service remains good, making it a relatively easy vehicle to maintain. However, potential buyers should be aware of the potential for expensive repairs, particularly related to the air suspension system and other complex components. The Cayenne S represents a significant milestone in Porsche’s history, marking the brand’s successful entry into the luxury SUV segment.
