Z4 M Roadster
Six cylinders, six manual gears and an open sky.
2006 European specification · Factory source
Every figure, in one place.
Performance
- Power
- 343 PS · 338 hp · 252 kW
- Torque
- 365 Nm
- 0–100 km/h
- 5 s
- Top speed
- 250 km/h · limited
- Power-to-weight
- 4.11 kg/PS
Engine and drivetrain
- Engine
- S54B32 · Inline-six
- Displacement
- 3,246 cm³
- Induction
- Naturally aspirated
- Redline
- 8,000 rpm
- Gearbox
- 6-speed manual
- Drivetrain
- Rear-wheel drive
- Powertrain
- Petrol
Body and dimensions
- Production
- 2006–2008
- Body
- Convertible
- Length
- 4,113 mm
- Width
- 1,781 mm
- Height
- 1,268 mm
- Wheelbase
- 2,495 mm
- Kerb weight
- 1,410 kg
- Fuel tank
- 55 L
Where this car ranks across all 93 cars in the catalogue.
Know before you buy
- Rod bearing wear and VANOS pump/solenoid faults
- Rear subframe mounting cracks on E46 bodies
- SMG hydraulic pump failure (where fitted)
Commonly reported ownership points, not a guarantee of faults. Always get an independent inspection.
A straight-six with the roof down.
The Z4 M Roadster uses the naturally aspirated S54B32. Its open body gives a different experience from the fixed-roof Z4 M Coupé without turning them into one shared performance specification.
A two-seat, naturally aspirated M roadster.
Roof condition and storage needs are part of the decision.
The Z4 M Roadster and Coupé have different body codes.
S54B32 · Inline-six
S54B32 straight-six reference. This photograph is not verified as a Z4 M engine-bay installation.
S54B32 · Petrol
The Z4 M Roadster combines the 3,246 cm³ S54 six-cylinder with natural aspiration and an 8,000 rpm engine-speed ceiling. It shares its engine family with the E46 M3.
Natural aspiration
Intake air enters without a turbocharger. Engine breathing, valve timing and engine speed shape the way torque builds.
Rear-wheel drive
A six-speed manual gearbox and variable M differential lock send power to the rear wheels. This entry is the E85 Roadster; the fixed-roof E86 M Coupé is a separate body style.
2006 European specification
Power and torque above describe engine output for this specific factory specification. PS means metric horsepower; hp is used for US-rated output. Other model years and markets can differ. Open the BMW factory source for the original specification.
The full specification.
Ownership and buying
- Buying tips
- Roof condition and storage needs are part of the decision.
- Maintenance notes
- Match the engine code and VIN to the correct BMW service schedule. Ask for dated maintenance records and an independent inspection before buying.
