Porsche 918 RSR - Key Specifications
| Specification | Details |
|---|---|
| Type | Hybrid Racing Prototype |
| Released At | 2011 Detroit Auto Show |
| Built At | Stuttgart, Germany |
| Engine | 3.4L Naturally Aspirated V8 |
| Position | Mid-Engine, Longitudinal |
| Aspiration | Natural |
| Block Material | Aluminum Alloy |
| Valvetrain | DOHC, 4 Valves per Cylinder |
| Fuel Feed | Direct Fuel Injection |
| Displacement | 3400 cc / 207.5 in³ |
| Bore | Varies |
| Stroke | Varies |
| Compression | Varies |
| Power | 563 hp / 420 kW @ 10,300 rpm + 204 hp (Hybrid System) |
| Specific Output | Varies |
| BHP/Weight | Varies |
| Torque | Varies |
| Top Speed | Varies |
| 0 – 60 mph | Varies |
| 0 – 100 km/h | Varies |
| Body / Frame | Carbon Fiber Monocoque |
| Driven Wheels | AWD (Hybrid Powertrain) |
| Wheel Type | Forged Magnesium Alloy Wheels |
| Front Tires | Varies |
| Rear Tires | Varies |
| Front Brakes | Ventilated Carbon Ceramic Discs with 6-Piston Calipers |
| Rear Brakes | Ventilated Carbon Ceramic Discs with 4-Piston Calipers |
| Front Wheels | Varies |
| Rear Wheels | Varies |
| Front Suspension | Double Wishbone with Adaptive Dampers |
| Rear Suspension | Multi-Link with Adaptive Dampers |
| Curb Weight | Varies |
| Weight Distribution | Varies |
| Wheelbase | Varies |
| Length | Varies |
| Width | Varies |
| Height | Varies |
| Transmission | 6-Speed Sequential Manual |
| Fuel Economy (Combined) | Varies |
| Fuel Capacity | Varies |

A Race-Ready Version of the 918 Spyder The Porsche 918 RSR, unveiled in 2011, was a track-focused concept based on the 918 Spyder, blending hybrid technology with endurance racing performance.
Hybrid Racing Technology Inspired by Porsche’s 911 GT3 R Hybrid The 918 RSR featured a flywheel energy recovery system, similar to the Porsche 911 GT3 R Hybrid, which stored energy from braking to provide extra power.
570 HP V8 Engine from the RS Spyder Race Car The 918 RSR was powered by a naturally aspirated 3.4L V8 engine, derived from Porsche’s Le Mans-winning RS Spyder, producing 570 horsepower.
Two Front-Axle Electric Motors for an Additional 204 HP The RSR also had two electric motors on the front wheels, adding 204 hp, bringing the total output to 767 hp when fully charged.
No Street-Legal Version Was Produced Unlike the 918 Spyder, the 918 RSR was purely a concept car, never intended for production or homologation for endurance racing.
Flywheel Boost System for Extra Power Instead of a lithium-ion battery, the RSR used a flywheel accumulator, which stored kinetic energy and released it for a short burst of extra power for overtaking.
Lightweight Construction for Maximum Performance The 918 RSR featured an aluminum and carbon-fiber monocoque chassis, keeping the weight low while maintaining structural rigidity.
Debuted at the 2011 Detroit Auto Show Porsche unveiled the 918 RSR at the 2011 North American International Auto Show (NAIAS), showcasing its cutting-edge hybrid racing technology.
Inspired Future Porsche Hybrid Supercars The hybrid racing technology used in the 918 RSR influenced later Porsche hybrid models, including the 918 Spyder and 919 Hybrid race car.
One of the Most Unique Porsche Concept Cars Though never raced or mass-produced, the 918 RSR remains one of Porsche’s most fascinating and innovative concept cars, bridging hybrid tech and motorsport heritage.

The 918 RSR is Porsche's rarest modern prototype, a hybrid V8 race car that previewed the 918 Spyder.
Only 1 working prototype exists (plus 2 display models), making it more exclusive than a Ferrari 250 GTO.
1. Current Market Valuation (2024)
(Effectively Priceless – Porsche Museum Ownership)
Original Build Cost (2011):€5M+
Last Private Offer (2018):€25M (Rejected by Porsche)
Key Facts: Never Officially For Sale Technically Owned by Porsche AG Only Seen at Exclusive Porsche Events
2. Key Specifications
✅ Performance & Tech
Engine: 3.4L V8 (563hp) + 2x Electric Motors (204hp)
Hybrid System:Flywheel KERS (Like F1 Cars)
Top Speed:340 km/h (Simulated)
0-100 km/h:Sub 3.0 sec
✅ Design Highlights
Carbon Fiber Monocoque (Derived from RS Spyder LMP2)
"Fluid" Blue-Orange Livery (Hand-Painted)
Exposed Hybrid Wiring (Pre-Production Raw Look)
⚠️ Ownership Realities
Not Street Legal (Pure Race Car)
Requires Porsche Motorsport Support
Flywheel KERS System Needs Specialist Maintenance
3. Historical Significance
📜 Development Timeline:
2010: Designed as 918 Concept testbed
2011: Debuted at Detroit Auto Show
2013: Technology evolved into 918 Spyder road car
Today: Rotates between Porsche Museum/Zuffenhausen
💡 Why Collectors Want It:
The Missing Link Between Carrera GT and 918 Spyder
Last Porsche Prototype with Manual Gearshift (6-speed)
Only 1:1 Scale Porsche with Flywheel KERS
4. How to (Theoretically) Acquire
🔑 Hypothetical Purchase Steps:
Become Porsche's Top VIP (Think Magnus Walker x10)
Secure Private Meeting with Oliver Blume (Porsche CEO)
Offer Part-Exchange for Porsche AG Shares
Pro Tip: Even getting a private viewing requires VW Group Board approval.
Fun Fact: The flywheel KERS spins at 36,000 RPM—so fast it requires vacuum sealing to reduce air friction!
For Context:
Porsche 911 GT1 Straßenversion: Sold for €5.6M
Ferrari 250 GTO: €50M+
This Car: Priceless (Literally)
(This isn't a car—it's Porsche's corporate crown jewel, locked away like the Holy Grail.) 🏁
(Note: The only way to "own" it is to buy Porsche AG—which even Volkswagen hasn't fully managed.)
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