The 2004 Porsche 911 is a two-door rear-engine sports car from the 996 generation, positioned as a high-performance daily-drivable coupe or convertible with iconic handling and braking. It’s ideal for enthusiasts who want classic 911 character with modern amenities, strong acceleration, and available all-wheel drive. In the market, it sits above typical luxury coupes thanks to its motorsport-derived engineering and premium build quality. For 2004, buyers could choose the Carrera lineup or step into the more track-focused GT3 for sharper dynamics.

1) Engine options: Carrera and Carrera 4 models use a 3.6L flat-six (known as the M96) rated around 315 hp; GT3 models use the Mezger-based 3.6L flat-six rated around 380 hp and designed for sustained high-RPM track use. 2) Drivetrain choices: Rear-wheel drive (Carrera) or all-wheel drive (Carrera 4) for extra traction in wet or cold climates without losing the 911’s steering feel. 3) Transmissions: 6-speed manual for maximum driver involvement, with Tiptronic automatic available on many Carrera models for easier commuting. 4) Chassis and brakes: Excellent balance from the rear-engine layout, precise steering, and strong braking performance that still feels confidence-inspiring by modern standards. 5) Body styles and practicality: Available as Coupe, Cabriolet, and Targa (where equipped), with usable front trunk space and small rear seats that add day-to-day versatility.

Shoppers researching “2004 Porsche 911 reliability” should know that the 996 can be dependable with proper care, but there are several well-known weak points—especially on Carrera models. 1) IMS bearing concerns (Carrera/Carrera 4, M96 engine): Intermediate Shaft (IMS) bearing failure is a widely discussed risk that can lead to catastrophic engine damage. Failures are often reported anywhere from roughly 30,000–100,000 miles, though they can occur outside that range. Not every car is affected, but documentation of an IMS retrofit or evidence of careful oil service history is a major plus. 2) Rear main seal (RMS) and oil leaks: Oil seepage at the RMS or other seals can show up in the 40,000–90,000 mile range. While some leaks are minor, clutch jobs or engine-out service can make repairs expensive, so a pre-purchase inspection (PPI) looking for leaks is important. 3) Cooling system wear: Water pumps, expansion tanks, and coolant hoses can age out and fail, often around 60,000–100,000 miles. Symptoms include coolant smell, visible leaks, overheating, or low coolant warnings. 4) Suspension and tire wear: Control arm bushings, coffin arms, and tie rods can wear with mileage, leading to clunks, vague steering, or uneven tire wear. Many owners address suspension refreshes around 70,000–120,000 miles depending on road conditions and driving style.