Mercedes SL-Class AMG 5.4 AT Specs — Second Generation
The Mercedes SL-Class AMG 5.4 AT, from the second generation of the roadster, is best understood through what its automatic transmission is doing between the engine and the rear wheels.
2 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
250 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
Front, longitudinal
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
500 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
368 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
9
Maximum power rpm
6100 rpm
Maximum torque N⋅m
700 N⋅m
Maximum torque rpm
2750 – 4000 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
4.7 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
Not provided
Battery power
Not provided
Fuel grade
95
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
80 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
19.9 l
Average consumption
13 l
Fuel consumption highway
9 l
Dimensions & body
Doors number
2
Number of seats
2
Width
1827 mm
Height
1295 mm
Length
4535 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
2560 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
1552 mm
Trunk volume max
317 l
Trunk volume min
235 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
1570 mm
Max weight
2200 kg
Curb weight?
The weight of the vehicle with all standard equipment and fluids but without passengers or cargo. Glossary entry
1955 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
132 mm
Identity & configuration
Body code
R230
Vehicle class
D
Body designation
R230
Right-hand drive
No
Additional specifications
Stop
2006-12-31
Start
2002-01-01
Wheel size
Not provided
Rear brakes
Ventilated 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
In an automatic, neutral opens the drive path so no gear set connects the torque converter output to the driveshaft. The engine can idle or be started while the wheels turn freely, which is what allows a car to be pushed or towed a short distance.
Drivetrain and Everyday Driving
A rear tyre has one grip budget shared between accelerating and cornering. On a rear-wheel-drive layout the driven rear tyres spend some of that budget on traction, so grip still available for lateral load falls as throttle rises mid-corner.
Body and Practicality
Roadster describes the open two-seat shape, not how high the boot floor sits. That height depends on what lies beneath it: spare wheel wells, fuel tank placement and any folding roof stowage, which are packaging choices rather than consequences of the body style.
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