The high-performance drop-top follows in the footsteps of the new M3 Coupe and M3 Sedan. Like its solid-roof counterparts, the Convertible is powered by a 4.0 liter V8 producing 420 horsepower and 295 pound-feet of torque. The drop-top's main competitors are the Audi RS4 Convertible and the Mercedes CLK 63 AMG.
BMW is also using the convertible to debut its seven-speed M DCT dual-clutch transmission. The seven-speed system promises shifting as smooth as a conventional automatic and faster than a manual gearbox or SMG transmission. Of course, customers can still opt for a regular six-speed manual.
Vehicle
- EPA Classification Sub-Compact
- EPA Greenhouse Gas Score 3 (2010)
Engine
- Engine Type Gas V8
- Displacement 4.0/244
- Fuel System DI
- SAE Net Horsepower @ RPM 414 @ 8300
- SAE Net Torque @ RPM 295 @ 3900
Transmission
- Drivetrain Rear Wheel Drive
- Trans Order Code 2MK
- Trans Type 7
- Trans Type 6
- Trans Description Cont. Manual
- Trans Description Cont. Automatic
- First Gear Ratio (:1) 4.06
- First Gear Ratio (:1) 4.78
- Second Gear Ratio (:1) 2.40
- Second Gear Ratio (:1) 2.93
- Third Gear Ratio (:1) 1.58
- Third Gear Ratio (:1) 2.15
- Fourth Gear Ratio (:1) 1.68
- Fourth Gear Ratio (:1) 1.19
- Fifth Gear Ratio (:1) 1.00
- Fifth Gear Ratio (:1) 1.39
- Sixth Gear Ratio (:1) 0.87
- Sixth Gear Ratio (:1) 1.20
- Reverse Ratio (:1) 4.45
- Reverse Ratio (:1) 3.68
- Clutch Size (in) - TBD -
- Final Drive Axle Ratio (:1) 3.85
- Final Drive Axle Ratio (:1) 3.15
- Seventh Gear Ratio (:1) 1.00
Mileage
- Fuel Economy Est-Combined (MPG) 16 (2010)
- EPA Fuel Economy Est - City (MPG) 13 (2010)
- EPA Fuel Economy Est - City (MPG) 14 (2010)
- EPA Fuel Economy Est - Hwy (MPG) 20 (2010)
Electrical
- Cold Cranking Amps @ 0° F (Primary) - TBD -
- Maximum Alternator Capacity (amps) 180
Cooling System
- Total Cooling System Capacity (qts) - TBD -
Weight Information
- Base Curb Weight (lbs) 4145
Trailering
- Dead Weight Hitch - Max Trailer Wt. (lbs) - TBD -
- Dead Weight Hitch - Max Tongue Wt. (lbs) - TBD -
Suspension
- Suspension Type - Front Double Pivot
- Suspension Type - Rear 5-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 -
Brakes
- Brake Type Pwr-Assisted
- Brake ABS System 4-Wheel
- Disc - Front (Yes or ) Yes
- Disc - Rear (Yes or ) Yes
- Front Brake Rotor Diam x Thickness (in) 14.2 x - TBD -
- Rear Brake Rotor Diam x Thickness (in) 13.8 x - TBD -
Tires
- Front Tire Size P245/40ZR18
- Front Tire Size P245/35ZR19
- Front Tire Size P245/40R18
- Rear Tire Size P265/40ZR18
- Rear Tire Size P265/35ZR19
- Rear Tire Size P265/40R18
Wheels
- Front Wheel Size (in) 18 x 8.5
- Front Wheel Size (in) 19 x 8.5
- Front Wheel Size (in) 19 x 9.0
- Rear Wheel Size (in) 18 x 9.5
- Rear Wheel Size (in) 19 x 9.5
- Rear Wheel Size (in) 19 x 10.0
- Front Wheel Material Alloy
- Rear Wheel Material Alloy
Steering
- Steering Type Pwr Rack & Pinion
- Steering Ratio (:1), Overall 12.5
- Lock to Lock Turns (Steering) - TBD -
- Turning Diameter - Curb to Curb (ft) - TBD -
- Turning Diameter - Wall to Wall (ft) - TBD -
Fuel Tank
- Fuel Tank Capacity, Approx (gal) 16.6
Exterior Dimensions
- Wheelbase (in) 108.7
- Length, Overall (in) 181.8
- Width, Max w/o mirrors (in) 71.0
- Height, Overall (in) 54.8
- Track Width, Front (in) 60.6
- Track Width, Rear (in) 60.6
- Min Ground Clearance (in) - TBD -
- Liftover Height (in) - TBD -
Cargo Area Dimensions
- Trunk Volume (ft³) 9.0
Interior Dimensions
- Passenger Capacity 4
- Passenger Volume (ft³) 84.0
- Front Head Room (in) 38.0
- Front Leg Room (in) 41.8
- Front Shoulder Room (in) 55.3
- Front Hip Room (in) - TBD -
- Second Head Room (in) 36.5
- Second Leg Room (in) 31.9
- Second Shoulder Room (in) 49.3
- Second Hip Room (in) - TBD -
Summary
- Vehicle Name M3
- Body Style 2 Door Convertible
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