Compare 2009 BMW 6-Series vs 2009 Mercedes-Benz SL Class vs 2009 Porsche 911

2009 BMW 6-Series
X
2009 Mercedes-Benz SL Class
X
2009 Porsche 911
X
Select style
2-Door Conv 650i
Style MPG City MPG Hwy Invoice MSRP
6 Series 2-Door Conv 650i 14 21 $78,475 $85,300
6 Series 2-Door Coupe 650i 15 22 $71,945 $78,200
M6 2-Door Conv 11 17 $99,270 $107,900
M6 2-Door Coupe 11 17 $93,930 $102,100
Select style
2-Door Coupe 6.0L AMG Black Series
Style MPG City MPG Hwy Invoice MSRP
SL-Class 2-Door Coupe 6.0L AMG Black Series 11 18 $278,070 $299,000
SL-Class 2-Door Roadster 5.5L V12 11 18 $129,363 $139,100
SL-Class 2-Door Roadster 5.5L V8 13 21 $91,605 $98,500
SL-Class 2-Door Roadster 6.0L AMG 11 18 $181,071 $194,700
SL-Class 2-Door Roadster 6.2L AMG 12 19 $125,550 $135,000
Select style
2-Door Convertible Carrera
Style MPG City MPG Hwy Invoice MSRP
911 2-Door Convertible Carrera 18 26 $78,120 $87,000
911 2-Door Convertible Carrera 4 17 25 $83,700 $93,200
911 2-Door Convertible Carrera 4S 17 23 $93,330 $103,900
911 2-Door Convertible Carrera S 17 25 $87,750 $97,700
911 2-Door Convertible Turbo 15 24 $126,450 $140,700
911 2-Door Coupe Carrera 18 26 $68,490 $76,300
911 2-Door Coupe Carrera 4 17 25 $74,070 $82,500
911 2-Door Coupe Carrera 4S 17 23 $83,700 $93,200
911 2-Door Coupe Carrera S 17 25 $78,120 $87,000
911 2-Door Coupe Turbo 16 23 $116,820 $130,000
911 2-Door Targa 4 17 25 $81,180 $90,400
911 2-Door Targa 4S 17 23 $90,180 $101,100
Pricing
Invoice Price
$78,475
$278,070
$78,120
Manufacturer Suggested Retail Price
$85,300
$299,000
$87,000
Monthly Payment Estimate
$1422 / month
$4983 / month
$1450 / month
The Car Connection's Take
TCC Rating
8.6
8.4
9.2
TCC’s Bottom Line
The technological burden the 2009 BMW 6-Series carries is a distraction from the car’s Herculean performance. The SL’s new look isn’t to everyone’s liking, but in AMG guise, it’s now more punch than paunch—and a worthy stealth Ferrari-chaser. The 2009 Porsche 911 is in a class of its own, and if you have your heart set on one, there's very little else to compare it to.
TCC Likes
TCC Dislikes
Fuel Economy
City
14 mpg 11 mpg 18 mpg
Highway
21 mpg 18 mpg 26 mpg
Vehicle
EPA Classification
Subcompact 2 Seater Mini-Compact
Interior Dimensions
Second Hip Room (in)
- TBD - - - TBD -
Front Shoulder Room (in)
56.4 54.0 - TBD -
Passenger Capacity
4 2 4
Second Head Room (in)
36.5 - - TBD -
Second Shoulder Room (in)
49.4 - - TBD -
Front Leg Room (in)
42.0 42.9 - TBD -
Front Hip Room (in)
- TBD - 56.9 - TBD -
Passenger Volume (ft³)
82.0 50.0 - TBD -
Second Leg Room (in)
29.0 - - TBD -
Front Head Room (in)
37.8 37.7 - TBD -
Exterior Dimensions
Track Width, Front (in)
61.3 61.8 58.5
Min Ground Clearance (in)
- TBD - - TBD - - TBD -
Length, Overall (in)
190.2 180.8 175.6
Height, Overall (in)
54.1 51.1 51.6
Track Width, Rear (in)
62.8 61.4 60.4
Wheelbase (in)
109.4 100.8 92.5
Liftover Height (in)
- TBD - - TBD - - TBD -
Width, Max w/o mirrors (in)
73.0 - TBD - 71.2
Cargo Area Dimensions
Trunk Volume (ft³)
10.6-12.4 15.9 (7.2 w/top down) 4.8
Brakes
Drum - Rear (Yes or )
NA NA NA
Brake ABS System
4-Wheel 4-Wheel 4-Wheel
Disc - Rear (Yes or )
Yes Yes Yes
Rear Brake Rotor Diam x Thickness (in)
13.6 x - TBD - 14.2 x 1.0 11.78 x 0.95
Brake Type
Pwr-Assisted Pwr Pwr
Rear Drum Diam x Width (in)
NA NA NA
Disc - Front (Yes or )
Yes Yes Yes
Front Brake Rotor Diam x Thickness (in)
13.7 x - TBD - 15.4 x 1.4 12.52 x 1.10
Fuel Tank
Fuel Tank Capacity, Approx (gal)
18.5 21.1 16.9
Steering
Steering Ratio (:1), Overall
14.4 - TBD - - TBD -
Turning Diameter - Curb to Curb (ft)
37.4 36.2 - TBD -
Steering Type
Pwr Variable Pwr Rack & Pinion Pwr Rack & Pinion
Lock to Lock Turns (Steering)
- TBD - 2.6 - TBD -
Turning Diameter - Wall to Wall (ft)
- TBD - - TBD - - TBD -
Tires
Rear Tire Order Code
NA NA NA
Front Tire Size
P245/45VR18 P265/35ZR19 P235/40ZR18
Spare Tire Size
NA Compact NA
Front Tire Order Code
NA NA NA
Spare Tire Order Code
NA NA NA
Rear Tire Size
P245/45VR18 P325/30ZR20 P265/40ZR18
Trailering
Wt Distributing Hitch - Max Tongue Wt. (lbs)
NA NA - TBD -
Dead Weight Hitch - Max Trailer Wt. (lbs)
- TBD - - TBD - - TBD -
Wt Distributing Hitch - Max Trailer Wt. (lbs)
NA NA - TBD -
Dead Weight Hitch - Max Tongue Wt. (lbs)
- TBD - - TBD - - TBD -
Weight Information
Base Curb Weight (lbs)
4277 4345 3263
Wheels
Spare Wheel Material
NA - TBD - NA
Front Wheel Size (in)
18 x 8.0 19 x 9.5 18 x 8
Spare Wheel Size (in)
NA - TBD - NA
Rear Wheel Material
Aluminum Aluminum Aluminum
Rear Wheel Size (in)
18 x 8.0 20 x 11.5 18 x 10
Front Wheel Material
Aluminum Aluminum Aluminum
Cooling System
Total Cooling System Capacity (qts)
- TBD - - TBD - - TBD -
Electrical
Maximum Alternator Capacity (amps)
170 - TBD - NA
Cold Cranking Amps @ 0° F (Primary)
- TBD - - TBD - - TBD -
Engine
SAE Net Horsepower @ RPM
360 @ 6300 661 @ 5400 345 @ 6800
Engine Type
Gas V8 Bi-Turbocharged Gas V12 Gas Flat 6-cyl
Fuel System
EFI SMPI EFI
SAE Net Torque @ RPM
360 @ 3400 738 @ 2200-4200 288 @ 4250
Engine Order Code
NA NA NA
Displacement
4.8L/293 6.0L/- TBD - 3.6L/219
Mileage
EPA Fuel Economy Est - City (MPG)
14 11 (Est) 18
Fuel Economy Est-Combined (MPG)
16 14 (Est) - TBD -
EPA Fuel Economy Est - Hwy (MPG)
21 18 (Est) 26
Transmission
Trans Description Cont. Again
NA NA NA
Seventh Gear Ratio (:1)
NA NA NA
Reverse Ratio (:1)
3.77 3.16 3.59
Second Gear Ratio (:1)
2.40 2.19 2.32
Trans Order Code
NA NA NA
Final Drive Axle Ratio (:1)
3.46 - TBD - 3.44
Fourth Gear Ratio (:1)
1.19 1.00 1.28
Trans Description Cont.
Manual w/OD Automatic w/OD Manual w/OD
Sixth Gear Ratio (:1)
0.87 NA 0.88
First Gear Ratio (:1)
4.06 3.60 3.91
Clutch Size (in)
- TBD - NA 9.45
Third Gear Ratio (:1)
1.58 1.41 1.61
Trans Type
6 5 6
Drivetrain
Rear Wheel Drive Rear Wheel Drive Rear Wheel Drive
Fifth Gear Ratio (:1)
1.00 0.83 1.08
Summary
Body Style
2 Door Convertible 2 Door Convertible 2 Door Convertible
Vehicle Name
BMW 6 Series Mercedes-Benz SL-Class Porsche 911
Suspension
Shock Absorber Diameter - Front (mm)
NA - TBD - - TBD -
Stabilizer Bar Diameter - Front (in)
NA - TBD - - TBD -
Suspension Type - Rear
Sport Independent Multi-Link
Suspension Type - Rear (Cont.)
4-Link 5-Arm Multi-Link w/Coil Springs
Shock Absorber Diameter - Rear (mm)
NA - TBD - - TBD -
Suspension Type - Front
Sport Independent MacPherson Strut
Stabilizer Bar Diameter - Rear (in)
NA - TBD - - TBD -
Suspension Type - Front (Cont.)
Double-Pivot 4-Link w/Coil Springs
Emissions
EPA Greenhouse Gas Score
3 1 (Est) -

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