Technical Specifications
| Category | Specification |
|---|---|
| Model Year | 2008 |
| Body Style | Roadster with semi-automatic fabric soft top |
| Engine | Hand-built Mercedes-AMG supercharged SOHC 24-valve V8 |
| Displacement | 5,439 cc / 5.4L |
| Maximum Power | 617 HP / 626 PS at 6,500 rpm |
| Maximum Torque | 780 Nm / 575 lb-ft from 3,250 to 5,000 rpm |
| Transmission | 5-speed AMG SPEEDSHIFT R automatic with manual shift modes |
| Drive Layout | Rear-wheel drive with front-mid-engine layout |
| 0–100 km/h | Approximately 3.8 seconds |
| Top Speed | 332 km/h / 206 mph |
| Chassis | Carbon-fiber monocoque with aluminum front engine frame |
| Body Construction | Predominantly carbon-fiber-reinforced plastic |
| Braking System | Sensotronic electro-hydraulic braking with carbon-fiber-reinforced ceramic discs |
| Aerodynamics | Adaptive rear spoiler with airbrake function under hard braking |
| Roof Operation | Semi-automatic fabric top retracts in under 10 seconds |
| Roof Speed Engineering | Designed for air pressures at speeds above 300 km/h |
| Doors | A-pillar-hinged swing-wing doors opening upward and forward |
| Exhaust | Side-exit exhaust outlets behind the front wheels |
| Seats | Carbon-fiber bucket-seat shells with two-tone leather upholstery |
| Cabin Equipment | BOSE audio system, dual-zone automatic climate control, aluminum center-console trim |
| Start Control | Engine start button beneath a flip-top flap on the gear selector |
Powertrain Analysis
The 5,439 cc powerplant is a longitudinal front-mid-mounted V8 with a single-overhead-cam valvetrain, 24 valves, and supercharging. The hand-built Mercedes-AMG engine produces 617 HP, equivalent to 626 PS, at 6,500 rpm.
Maximum torque is 780 Nm, or 575 lb-ft, across a 3,250–5,000 rpm band. A 5-speed AMG SPEEDSHIFT R automatic transmission provides manual shift modes and transmits engine output exclusively to the rear wheels.
The roadster reaches 100 km/h from rest in approximately 3.8 seconds. Maximum speed is 332 km/h, equivalent to 206 mph.
Chassis & Dynamics
The primary structure combines a carbon-fiber monocoque with an aluminum front engine frame. Carbon-fiber-reinforced plastic is used across most of the body construction, while the front-mid-engine configuration positions the V8 behind the front axle line.
The brake system combines Sensotronic electro-hydraulic control with carbon-fiber-reinforced ceramic brake discs. An adaptive rear spoiler tilts upward during hard braking to operate as an airbrake and increase rear aerodynamic load.
The fabric roof uses a semi-automatic mechanism with a retraction time below 10 seconds. Its construction is engineered for aerodynamic pressure at vehicle speeds exceeding 300 km/h. A-pillar-mounted swing-wing doors open upward and forward, while the exhaust system exits through outlets located behind the front wheels.