Mercedes-Benz SLK 55 AMG Overview

At the top of the Mercedes-Benz 'pile' sits the SLK 55 AMG roadster, the ultimate open-top Mercedes-Benz aimed at sun-worshiping performance hedonists. Slotting above the 'mere' SL 63 AMG, the SL 65 features a 6.0 liter V12 engine that pumps out an astounding 612 horsepower, an eight horsepower bump from before. Even more impressive is the 738 lb-ft. of torque from the motor, a figure usually reserved for big rigs and maybe even tugboats. Because of all this torque and power, the SL 65 makes due to mercedes slk accessories like ultra-stout five-speed automatic transmission, rather than the six or seven-speed transmissions that seem de rigueur in high performance cars today. Still, Mercedes-Benz estimates that the SL 65 will hit 62 miles per hour in a mere 4.2 seconds. The SL 65 features the same new styling that dresses up the rest of the SL roadster lineup for 2009.

Mercedes-Benz SLK 55 AMG Features


  • 5.5L SOHC SMPI 24-valve V8 AMG engine
  • AMG 7-speed driver-adaptive automatic transmission w/OD -inc: AMG SPEEDSHIFT, touch shift, optimum gear programming, comfort mode
  • Rear wheel drive
  • Independent 3-link front suspension -inc: coil springs over gas-pressurized shock absorbers, anti-dive geometry
  • Independent 5-arm multi-link rear suspension -inc: separate coil springs, shock absorbers, anti-squat geometry, alignment control
  • AMG sport suspension
  • Front/rear lowered ride-height & AMG stabilizer bars
  • Vehicle-speed-sensitive pwr rack & pinion steering w/direct-steer system, integrated hydraulic damper
  • AMG 4-piston perforated & ventilated front & 2-piston ventilated rear disc brakes
  • AMG sport exhaust system w/dual twin chrome tailpipes


  • 18" x 7.5" front AMG twin 5-spoke aluminum wheels, 18" x 8.5" rear AMG twin 5-spoke aluminum wheels
  • P225/40ZR18 front high performance tires
  • P245/35ZR18 rear high performance tires
  • Electro-hydraulic retractable steel hardtop
  • Formula 1-style nose w/color-keyed grille crossfins
  • AMG-designed Formula 1-style front air dam -inc: mesh air intakes, side skirts & rear apron
  • Color-keyed AMG-designed rear lip spoiler
  • Variable-focus halogen headlamps -inc: polycarbonate lenses, light-sensing auto-on, automatic lamp substitution
  • Halogen front fog lamps
  • Single rear red fog lamp
  • Pwr heated mirrors -inc: integrated LED turn signals, reverse tilt down RH mirror, auto-dimming LH mirror, memory
  • Variable intermittent rain sensor windshield wipers w/heated washer system
  • Smoked-tinted rear lamps w/LED brake & taillamps


  • AMG premium leather seat trim
  • 8-way pwr heated AMG sport seats -inc: silver painted magnesium trim, height adjustable head restraints, 3-position memory, 4-way lumber support
  • Center console -inc: illuminated enclosed storage
  • Retractable dual cupholders
  • Velour carpeting -inc: AMG floor mats
  • Stainless-steel door sill trim -inc: AMG insignia
  • Rubber-studded brushed stainless-steel pedals
  • 3-spoke AMG leather-wrapped 4-way pwr tilt/telescopic sport steering wheel w/memory -inc: mounted audio & multi-function display controls, aluminum shift paddles, easy-exit feature
  • AMG gauges w/red needles
  • AMG instrument cluster w/Racetimer, electronic analog speedometer, AMG tachometer, fuel level, quartz clock
  • Digital odometer, touch shift gear & mode selection
  • Multi-function display in instrument cluster -inc: trip computer, exterior temp gauge, digital speedometer, coolant temp, maintenance system, audio status, reminder & malfunction messages, driver-programmable settings, engine oil level check
  • Mercedes-Benz Maintenance System Plus display -inc: distance remaining to next maintenance, type of service due, reminders, brake-pad wear
  • Audible reminders & messages -inc: exterior lamp failure, low fuel, engine oil, coolant, washer fluid, release parking brake, headlamps on, remove key from ignition
  • Touch turn signals (flashes (3) times w/1-touch)
  • Pwr windows -inc: 1-touch express up/down, 1-button raising/lowering of all windows via pwr top switch
  • SmartKey system -inc: remote central locking system, anti-theft engine immobilizer, drive away automatic locking
  • SmartKey infrared remote -inc: trunk open, panic alarm, fuel filler door, selective unlock, hard top raise/lower
  • Garage door opener
  • Cruise control
  • Anti-theft alarm system
  • Automatic dual-zone climate control -inc: dual rotary controls, electrostatic dust & pollen filters, active charcoal filter, REST mode w/engine heat recirculation feature or cabin ventilation, dash-top diffuser vent
  • Illuminated glovebox
  • Rear window defroster w/auto-shutoff based on time & driving speed & exterior temp
  • Aluminum trim
  • Auto-dimming mirror
  • Dual illuminated vanity mirrors
  • Courtesy lamps w/delay shut-off
  • Dual front reading lamps
  • Night security illumination
  • Locator lighting
  • Ambient lighting -inc: center console, footwells, door entrance lamps
  • AMG leather-wrapped shift knob
  • Parcel net in RH footwell
  • AMG door entrance plates
  • Pockets in doors
  • Illuminated carpeted trunk
  • Enclosed storage on rear cabin wall


  • Anti-lock braking system (ABS) w/brake assist
  • AMG 2-stage electronic stability program (ESP)
  • Driver-programmable daytime running lamps
  • Dual-stage front airbags w/front passenger adaptive feature, occupant classification system
  • Head & thorax side-impact airbags
  • Knee air bag
  • Tele Aid global positioning system (GPS) satellite system -inc: stolen vehicle recovery, remote door unlock service, automatic alarm & collision notification
  • 3-point shoulder belts w/emergency tensioning device (ETD) & belt force limiter
  • Integrated roll bars
  • Tire pressure monitoring system
  • Illuminated emergency interior trunk release

Mercedes-Benz SLK 55 AMG Specification

EPA Classification 2 Seater
EPA Greenhouse Gas Score 3
Engine Type Gas V8
Displacement 5.5L/332
Fuel System SMPI
SAE Net Horsepower @ RPM 355 @ 5750
SAE Net Torque @ RPM 376 @ 3500
Drivetrain Rear Wheel Drive
Trans Order Code 427
Trans Type 7
Trans Description Cont. Automatic w/OD
First Gear Ratio (:1) 4.38
Second Gear Ratio (:1) 2.86
Third Gear Ratio (:1) 1.92
Fourth Gear Ratio (:1) 1.37
Fifth Gear Ratio (:1) 1.00
Sixth Gear Ratio (:1) 0.82
Reverse Ratio (:1) 3.42 (R2 2.23)
Final Drive Axle Ratio (:1) 3.06
Seventh Gear Ratio (:1) 0.73
Fuel Economy Est-Combined (MPG) 17
EPA Fuel Economy Est - City (MPG) 14
EPA Fuel Economy Est - Hwy (MPG) 22
Cold Cranking Amps @ 0° F (Primary) - TBD -
Maximum Alternator Capacity (amps) 150
Total Cooling System Capacity (qts) 11.7
Base Curb Weight (lbs) 3472
Suspension Type - Front Independent
Suspension Type - Rear Independent
Suspension Type - Front (Cont.) 3-Link
Suspension Type - Rear (Cont.) 5-arm Multi-Link
Shock Absorber Diameter - Front (mm) - TBD -
Shock Absorber Diameter - Rear (mm) - TBD -
Stabilizer Bar Diameter - Front (in) - TBD -
Stabilizer Bar Diameter - Rear (in) - TBD -
Brake Type Power
Brake ABS System 4-Wheel
Disc - Front (Yes or ) Yes
Disc - Rear (Yes or ) Yes
Front Brake Rotor Diam x Thickness (in) 13.6 x 1.2
Rear Brake Rotor Diam x Thickness (in) 11.8 x 0.9
Front Tire Order Code - TBD -
Rear Tire Order Code - TBD -
Front Tire Size P225/40ZR18
Rear Tire Size P245/35ZR18
Spare Tire Size - TBD -
Front Wheel Size (in) 18 x 7.5
Rear Wheel Size (in) 18 x 8.5
Spare Wheel Size (in) - TBD -
Front Wheel Material Aluminum
Rear Wheel Material Aluminum
Spare Wheel Material - TBD -
Steering Type Power Rack & Pinion
Steering Ratio (:1), Overall - TBD -
Lock to Lock Turns (Steering) 2.16
Turning Diameter - Curb to Curb (ft) 34.5
Turning Diameter - Wall to Wall (ft) - TBD -
Fuel Tank Capacity, Approx (gal) 18.5
Wheelbase (in) 95.7
Length, Overall (in) 161.4
Width, Max w/o mirrors (in) 70.6
Height, Overall (in) 50.0
Tread Width, Front (in) 60.0
Tread Width, Rear (in) 61.0
Min Ground Clearance (in) - TBD -
Liftover Height (in) - TBD -
Trunk Volume (ft3) 9.8 (6.5 w/top down)
Passenger Capacity 2
Passenger Volume (ft3) 49.0
Front Head Room (in) 37.9
Front Leg Room (in) 42.5
Front Shoulder Room (in) 52.2
Front Hip Room (in) 54.6