Mercedes SLR McLaren 5.4 AT Specs — First Generation
The Mercedes SLR McLaren 5.4 AT, a first-generation roadster, is examined here through one question drivers rarely spell out: why pedal movement and road speed are two separate things.
1 generation · Roadster
Generation photo. Individual trim appearance may differ.
The highest speed a vehicle can sustain under manufacturer test conditions. Some cars are electronically limited below their mechanical potential. Glossary entry
334 km/h
Engine type
Gasoline
Transmission
Automatic
Type of boost?
A turbocharger or supercharger compresses the air entering the engine so a smaller engine can produce more power. Naturally aspirated engines draw air without a compressor. Glossary entry
Compressor
Type of drive?
Which wheels receive power: front-wheel drive, rear-wheel drive or all-wheel drive. All-wheel drive can send power to every wheel for extra traction. Glossary entry
RWD
Bore and stroke?
The diameter of a cylinder (bore) and the distance the piston travels inside it (stroke). Together they determine the displacement of the engine. Glossary entry
97 × 92 mm
Engine capacity?
The total volume swept by all pistons inside the cylinders, usually stated in cubic centimetres or litres. Larger displacement often means more power but higher consumption. Glossary entry
5439 cm³
Engine location
Not provided
Number of gears?
How many fixed forward ratios a gearbox offers. More gears can improve economy and refinement; continuously variable transmissions have no fixed steps. Glossary entry
5
Maximum power?
A unit of engine or motor output. One metric horsepower is about 0.735 kilowatts. Peak power is normally reached at high engine speed. Glossary entry
626 hp
Maximum power, kw?
A unit of engine or motor output. One metric horsepower is about 0.735 kilowatts. Peak power is normally reached at high engine speed. Glossary entry
460 kW
Compression ratio?
The ratio between the largest and smallest volume of a cylinder as the piston moves. Higher ratios improve efficiency but may require higher-octane fuel. Glossary entry
8.8
Maximum power rpm
6500 rpm
Maximum torque N⋅m
780 N⋅m
Maximum torque rpm
3250 rpm
Acceleration to 100?
The time a vehicle needs to reach 100 km/h from a standstill, a common shorthand for overall performance. Glossary entry
3.8 s
Engine power system
Distributed injection (multi-point)
Number of cylinders
8
Valves per cylinder?
The number of intake and exhaust valves in each cylinder. Four valves per cylinder is common and helps the engine breathe at higher speeds. Glossary entry
3
Cylinder arrangement
V-shaped
Maximum power ICE
Not provided
Maximum power ICE
Not provided
Energy & emissions
ECO class
Euro 4
Battery power
Not provided
Fuel grade
98
Mild Hybrid?
A car with a small electric motor and battery that assist the combustion engine and recover braking energy but cannot drive on electricity alone. Glossary entry
Not provided
Battery type
Not provided
CO2 emissions?
The amount of carbon dioxide released per kilometre under a standardised test. Lower figures usually go hand in hand with lower fuel consumption. Glossary entry
Not provided
Full charge home
Not provided
Power consumption
Not provided
Fuel tank capacity
97 l
Full public charging time
Not provided
Driving range, maximum?
The distance an electric or plug-in vehicle can travel on a full charge under a stated test cycle. Temperature, speed and load change the real result. Glossary entry
Not provided
Driving range, minimum?
The distance an electric or plug-in vehicle can travel on a full charge under a stated test cycle. Temperature, speed and load change the real result. Glossary entry
Not provided
Fuel consumption city
22 l
Average consumption
14.5 l
Fuel consumption highway
10.6 l
Dimensions & body
Doors number
2
Number of seats
2
Width
1908 mm
Height
1261 mm
Length
4656 mm
Body type
Roadster
Wheelbase?
The distance between the centres of the front and rear wheels. A longer wheelbase usually gives more cabin space and a calmer ride; a shorter one helps agility and parking. Glossary entry
2700 mm
U-turn diameter
Not provided
Depth of the ford to be crossed
Not provided
Body style
Drop-top
Rear track width?
The distance between the centres of the two wheels on the same axle. A wider track generally improves stability in corners. Glossary entry
1569 mm
Trunk volume max
Not provided
Trunk volume min
272 l
Front track width?
The distance between the centres of the two wheels on the same axle. A wider track generally improves stability in corners. Glossary entry
1638 mm
Max weight
1935 kg
Curb weight?
The weight of the vehicle with all standard equipment and fluids but without passengers or cargo. Glossary entry
1768 kg
Ground clearance, maximum?
The gap between the lowest point of the underbody and the road. More clearance helps on rough roads and steep driveway ramps. Glossary entry
Not provided
Ground clearance, minimum?
The gap between the lowest point of the underbody and the road. More clearance helps on rough roads and steep driveway ramps. Glossary entry
102 mm
Identity & configuration
Body code
R199
Vehicle class
S
Body designation
R199
Right-hand drive
No
Additional specifications
Stop
2009-05-31
Start
2007-09-01
Wheel size
Not provided
Rear brakes
Disc
Front brakes
Ventilated disc
Rear suspension
Independent, spring
Front suspension
Independent, spring
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Not provided means the source has no value. Zero remains zero. Units are shown as supplied; range test cycles are only stated when known.
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Engine and Transmission
A gasoline engine responds to the throttle by taking in more air and fuel, which raises torque rather than speed directly. Road speed follows only after the automatic transmission's current ratio and the car's load translate that torque into wheel rotation.
Drivetrain and Everyday Driving
Drive layout describes which wheels receive engine torque; wheel alignment describes the angles at which wheels sit relative to the road and each other. A rear-wheel-drive car still relies on alignment to keep its steered front wheels tracking straight.
Body and Practicality
A roadster's outline stays fixed whether the roof is up or stowed, so the footprint you judge when parking does not shrink with the top down. Clearance for opening doors, however, is measured from the body sides, not the roof.
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