Technical Specifications
| Category | Specification |
|---|---|
| Vehicle Type | Open-top grand tourer / supercar |
| Engine | M155 5.4L supercharged V8 |
| Displacement | 5,439 cc |
| Valvetrain | 24 valves |
| Induction | Twin-screw supercharger with dual charge-air coolers |
| Lubrication | Dry-sump system |
| Maximum Power | 617 hp (626 PS / 460 kW) at 6,500 rpm |
| Maximum Torque | 575 lb-ft (780 Nm) from 3,250 to 5,000 rpm |
| Transmission | 5-speed AMG SPEEDSHIFT R automatic |
| Manual Shift Modes | 3 modes |
| Drive Layout | Front-mid-engine, rear-wheel drive |
| 0–60 mph | 3.6 seconds |
| 0–100 km/h | 3.8 seconds |
| Top Speed | 206 mph (332 km/h) |
| Chassis Construction | Carbon-Fiber Reinforced Plastic monocoque |
| Braking System | Carbon-ceramic discs with Sensotronic Brake Control |
| Aerodynamics | Electronically managed active rear airbrake and six-channel rear diffuser |
| Roof | Semi-automatic fabric soft top |
| Roof Operation Time | Approximately 10 seconds |
Powertrain Analysis
The M155 powerplant is a 5,439 cc, front-mid-mounted V8 with 24 valves, dry-sump lubrication, and a twin-screw supercharger. Dual charge-air coolers support an output of 617 hp, equivalent to 626 PS or 460 kW, at 6,500 rpm.
Peak torque is rated at 575 lb-ft, equivalent to 780 Nm, across a 3,250–5,000 rpm operating range. The engine installation places the V8 behind the front axle within a front-mid-engine layout.
A 5-speed AMG SPEEDSHIFT R automatic transmission transfers power to the rear wheels. The transmission includes three manual shifting modes, while the rear-wheel-drive configuration supports the 3.6-second 0–60 mph and 3.8-second 0–100 km/h acceleration figures.
Chassis & Dynamics
The chassis uses a Carbon-Fiber Reinforced Plastic monocoque with CFRP body panels. The composite construction combines the convertible body structure with a carbon-fiber passenger cell and carbon-fiber exterior architecture.
Stopping hardware consists of carbon-fiber-reinforced ceramic brake discs managed by the Sensotronic Brake Control system. Carbon-ceramic disc construction provides high thermal resistance during repeated high-load braking events.
The rear trunk lid integrates an electronically managed active airbrake that deploys during heavy braking. A flat carbon-fiber underfloor directs airflow toward a functional six-channel rear diffuser, while side-exit exhaust outlets are positioned in the front fenders.
Roof & Cockpit Configuration
The semi-automatic fabric soft top folds in approximately 10 seconds. The roof uses acoustic materials intended to reduce cabin noise at high vehicle speeds.
The cockpit includes carbon-fiber sports bucket seats trimmed in Silver Arrow leather, an aluminum center console, and a push-button starter positioned beneath a flip cover on the gearshift lever. Swing-wing butterfly doors pivot forward and upward through hinges engineered for the roadster body structure.