When Porsche ended the 997 generation in 2011, it signed off with the GT3 RS 4.0: the largest, most powerful and final version of the naturally aspirated, manual-only, Mezger-engined GT3 RS. Just 600 were built. It is now regarded as the high-water mark of the analogue 911 — the car every later GT3 RS is measured against — and values reflect it.
This guide covers the full specification, where values sit today, how the 4.0 compares with the rest of the Mezger lineage, and what matters most when you buy one.
Specification
| Model year | 2011 (997.2) |
| Units built | 600 |
| Engine | 4.0 L naturally aspirated flat-six (Mezger) |
| Power | 500 hp (368 kW) @ 8,250 rpm |
| Torque | 339 lb-ft (460 Nm) @ 5,750 rpm |
| Transmission | 6-speed manual |
| 0–60 mph | ~3.8 sec |
| Top speed | 193 mph (310 km/h) |
| Weight | ~1,360 kg (3,000 lb) |
| Layout | Rear-engine, rear-wheel drive |
| Price when new | ~$185,000 (2011) |
Performance in context
The 4.0 was the peak of the Mezger-engined GT3 RS line that began with the 996. More displacement, more power and a 500 hp naturally aspirated flat-six that revved to 8,500 rpm — the last of its kind before Porsche moved the RS to turbocharging and PDK only.
The market: what a GT3 RS 4.0 is worth now
The 4.0 sits well clear of every other GT3 RS. Where a 991.2 or 992 RS trades around the low-to-mid six figures, a well-kept, low-mileage 997 GT3 RS 4.0 typically commands roughly $500,000 to $750,000, and the very best, delivery-mileage cars have gone higher. Originality, documented history and low mileage are everything here.
Indicative market guidance, October 2026. Sources: CLASSIC.COM, Hagerty. Figures are typical ranges, not a quotation.
What to look for when buying
- Originality — unmodified cars in original specification and colour carry a clear premium; track damage and non-original parts hurt value.
- Mileage and history — with only 600 built, documented low-mileage cars lead the market; a full Porsche service record is expected.
- The Mezger engine — robust, but confirm service history and that it has not been abused on track without proper maintenance.
- Accident and paint — check for prior damage and repainting; these cars are scrutinised closely at this value.
- Provenance — ownership chain and any delivery/collection documentation support the best prices.
We source 997 GT3 RS 4.0s privately, through collector and specialist networks, and handle inspection, verification, negotiation and delivery. Tell us the specification, mileage and history you want, and we will find it.
Request a vehicle
