2012 BMW 650i Road Test Specs | Edmunds

2012 BMW 6 Series - Road Test Specs

2012 BMW 6 Series Convertible

(4.4L V8 Twin-turbo 6-speed Manual)


Year Make Model2012 BMW 6 Series 650i 2dr Convertible (4.4L 8cyl Turbo 8A)
Vehicle TypeRWD 2dr 2-passenger Convertible
Base MSRP$91,375
Options on test vehicleOrion Silver Metallic; Driver Assistance Package ($3,900 -- includes side and top-view cameras, Active Blind Spot Detection, head-up display, Parking Assistant, lane departure warning, high beams); Active Roll Stabilization (ARS) ($2,000 -- includes hydro-electrically actuated stabilizer bars); Premium Sound Package ($1, 800 -- includes Sirius Satellite Radio; 1-year subscription to Sirius Satellite Radio service. premium hi-fi system, iPod/USB adapter); Luxury Seating Package ($1,500 -- includes active front seats that periodically, alternately raise and lower the left and right halves of each front seat cushion, ventilated front seats); Instrument Panel With Leather Finish ($1,500 -- dashboard, upper door trim and center console all trimmed in Black Napa leather with contrasting stitching that matches the color of the seats); 20-Inch Light-Alloy Wheels With Performance Tires ($1,300 -- includes 20-by-8.5-inch front and 20-by-9-inch rear V-Spoke (style 356) alloy wheels with 245/35R20 95Y front and 275/30R20 97Y rear run-flat performance tires, increased top speed limiter, full LED lights); Cold Weather Package ($750 -- includes ski bag, heated steering wheel, three-stage heating for front seats); Ceramic Controls ($650 -- includes black glazed finish on certain parts, such as the iDrive controller bezel, ventilation controls and audio controls); BMW Apps ($250 -- allows an iPhone iOS 4.x to play apps specially modified for BMW and BMW approved 3rd party apps); Sport Automatic Transmission With Shift Paddles ($0 -- includes eight-speed automatic transmission with steering-wheel-mounted gear shift paddles)
As-tested MSRP$105,025
Assembly locationDingolfing, Germany
North American parts content (%)5 percent


ConfigurationLongitudinal front engine, rear-wheel drive
Engine typeTwin-turbocharged direct-injected V8, gasoline
Displacement (cc/cu-in)4,395/268
Block/head materialAluminum/aluminum
ValvetrainDOHC, four valves per cylinder, variable intake + exhaust-valve timing
Compression ratio (x:1)10.0
Redline, indicated (rpm)7,000
Horsepower (hp @ rpm)400 @ 5,500
Torque (lb-ft @ rpm)450 @ 1,750
Fuel typePremium unleaded (required)
Transmission typeEight-speed automatic with console and paddle shifters
Transmission ratios (x:1)I=4.714, II=3.143, III=2.106, IV=1.667, V=1.285, VI=1.000, VII=0.839, VIII=0.667
Final-drive ratio (x:1)3.077


Suspension, frontIndependent multilink, coil springs, self-adjusting variable dampers, lower control arms, self-adjusting, active, stabilizer bar
Suspension, rearIndependent multilink, coil springs, self-adjusting variable dampers, self-adjusting, active, stabilizer bar
Steering typeElectric speed-proportional power steering
Steering ratio (x:1)17.1:1
Tire make and modelDunlop SP Sport Maxx GT
Tire typeSummer
Tire size, front245/35R20 (95Y)
Tire size, rear275/30R20 (97Y)
Wheel size, front20-by-8.5 inches
Wheel size, rear20-by-9 inches
Wheel materialAlloy
Brakes, front13.7-inch ventilated steel discs, single-piston sliding caliper
Brakes, rear13.6-inch ventilated steel discs, single-piston sliding caliper

Track Test Results

Acceleration, 0-30 mph (sec.)2.0
0-45 mph (sec.)3.3
0-60 mph (sec.)4.9
0-75 mph (sec.)6.9
1/4-mile (sec. @ mph)13.1 @ 107.4
0-60 with 1 foot of rollout (sec.)4.6
0-30 mph, trac ON (sec.)2.3
0-45 mph, trac ON (sec.)3.6
0-60 mph, trac ON (sec.)5.2
0-75 mph, trac ON (sec.)7.2
1/4-mile, trac ON (sec. @ mph)13.3
0-60, trac ON with 1 foot of rollout (sec.)4.8
Braking, 30-0 mph (ft.)28
60-0 mph (ft.)111
Slalom, 6 x 100 ft. (mph)66.4
Slalom, 6 x 100 ft. (mph) ESC ON65.1
Skid pad, 200-ft. diameter (lateral g)0.90
Skid pad, 200-ft. diameter (lateral g) ESC ON0.90
Sound level @ idle (dB)46.7
@ Full throttle (dB)75.2
@ 70 mph cruise (dB)63.3
@ 70 mph top down (dB)75.6
Engine speed @ 70 mph (rpm)1,800

Test Driver Ratings & Comments

Acceleration commentsThe 650i Convertible produces a wide range of accel. times from different combos of "Norm TC on, Sport TC off, and Sport + (Dyn TC)." Quickest run came in Sport TC off, and manual shift mode (which actually auto-shifts very quickly). Engine feels strong and torque-rich, but not as much as the recent M-B turbo V8s. Because of this, wheelspin is pretty much managable with throttle.
Braking commentsMade no difference what mode, every stop was nearly identical: minimal dive, no ABS buzz, straight and largely fade-free. Pedal remained medium firm throughout.
Handling commentsSkid pad: Supremely neutral with just a hint of understeer with ESC off. Could almost nudge the tail out but not quite. Steering weight changes with mode but it remains very precise regardless. With ESC in dynamic mode it breathes off the throttle almost imperceptibly. Slalom: With ESC off this car exhibits classic RWD behavior, but these 20-inch Dunlops step off rather abruptly (especially with drop-throttle) so the trick is to balance between under- and oversteer. Steering isn't all that informative, but is laser-precise. Excellent ESC in dynamic mode (Sport +) and ESC off only available in Sport.

Testing Conditions

Test date7/6/2011
Test locationCalifornia Speedway
Elevation (ft.)1,121
Temperature (°F)89.8
Relative humidity (%)38.3
Barometric pressure (in. Hg)28.8
Wind (mph, direction)3.4, crosswind
Odometer (mi.)3,520
Fuel used for testPremium (91 octane) unleaded
As-tested tire pressures, f/r (psi)38/42

Fuel Consumption

EPA fuel economy (mpg)16 city/24 highway/19 combined
Edmunds observed (mpg)15.9
Fuel tank capacity (U.S. gal.)18.5
Driving range (mi.)407

Audio and Advanced Technology

Stereo description12-speaker Hi-Fi audio system with HD radio and MP3-compatible CD drive
iPod/digital media compatibilityiPod and USB adapter
Satellite radio1-year Sirius subscription
Bluetooth phone connectivityStandard, smart phone integration
Navigation systemStandard 10.2-inch with voice control and real-time traffic
Telematics (OnStar, etc.)Standard 48 months trial subscription
Smart entry/StartStandard keyless start/entry
Parking aidsStandard rearview camera and park-distance control, optional top and side view cameras
Blind-spot detectionOptional
Adaptive cruise controlOptional
Lane-departure monitoringOptional
Collision warning/avoidanceOptional
Night VisionOptional
Driver coaching displayStandard real-time mpg display

Dimensions & Capacities

Curb weight, mfr. claim (lbs.)4,531
Curb weight, as tested (lbs.)4,560
Weight distribution, as tested, f/r (%)51.7/48.3
Length (in.)192.7
Width (in.)74.5
Height (in.)53.7
Wheelbase (in.)112.4
Track, front (in.)63.0
Track, rear (in.)65.2
Turning circle (ft.)38.4
Legroom, front (in.)42.1
Legroom, rear (in.)30.5
Headroom, front (in.)40.3
Headroom, rear (in.)36.5
Shoulder room, front (in.)56.9
Shoulder room, rear (in.)49.6
Seating capacity4
Step-in height, measured (in.)16.25
Trunk volume (cu-ft)12.3
Trunk volume, top down (cu-ft)10.6
Cargo loading height, measured (in.)28.8
GVWR (lbs.)5,401
Ground clearance (in.)4.8
Convertible top materialCanvas
Operation typeFully automated
Operation time, lower/raise (sec.)22/26
Operation lockout25 mph


Bumper-to-bumper4 years/50,000 miles
Powertrain4 years/50,000 miles
Corrosion12 years/Unlimited miles
Roadside assistance4 years/Unlimited miles
Free scheduled maintenance4 years/50,000 miles

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