Compare 2015 BMW 6-Series vs 2015 Mercedes-Benz SL Class

2015 BMW 6-Series
2015 Mercedes-Benz SL Class
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2-Door Coupe RWD 640i
Style MPG City MPG Hwy Invoice MSRP
2-Door Coupe RWD 640i 21 32 $70,510 $76,100
4-Door Sedan RWD Gran Coupe 640i 20 31 $72,535 $78,300
2-Door Coupe AWD 640i xDrive 20 29 $73,270 $79,100
4-Door Sedan AWD Gran Coupe 640i xDrive 20 29 $75,295 $81,300
2-Door Convertible RWD 640i 20 31 $77,410 $83,600
2-Door Convertible AWD 640i xDrive 20 29 $80,170 $86,600
2-Door Coupe RWD 650i 17 25 $80,910 $87,400
4-Door Sedan RWD Gran Coupe 650i 17 25 $82,930 $89,600
2-Door Coupe AWD 650i xDrive 16 25 $83,670 $90,400
4-Door Sedan AWD Gran Coupe 650i xDrive 16 24 $85,690 $92,600
2-Door Convertible RWD 650i 17 25 $87,810 $94,900
2-Door Convertible AWD 650i xDrive 16 24 $90,570 $97,900
4-Door Sedan AWD Gran Coupe ALPINA B6 xDrive 16 24 $108,415 $117,300
Select style
2-Door Roadster SL 400
Style MPG City MPG Hwy Invoice MSRP
2-Door Roadster SL 400 20 27 $78,120 $84,000
2-Door Roadster SL 550 17 24 $99,417 $106,900
2-Door Roadster SL 63 AMG 16 25 $137,687 $148,050
2-Door Roadster SL 65 AMG 14 21 $200,183 $215,250
Pricing
Invoice Price
$70,510
$78,120
Manufacturer Suggested Retail Price
$76,100
$84,000
Monthly Payment Estimate
$1268 / month
$1400 / month
The Car Connection's Take
TCC Rating
8.4
8.2
TCC’s Bottom Line
Whether chosen as a coupe, convertible, or four-door Gran Coupe, the 2015 BMW 6-Series offers dynamic driving and massive style. The 2015 Mercedes-Benz SL-Class is sportier than its predecessor, but still manages to coddle its occupants just as before.
TCC Likes
TCC Dislikes
Fuel Economy
City
21 mpg 20 mpg
Highway
32 mpg 27 mpg
Vehicle
EPA Classification
Subcompact Cars Two-Seaters
Interior Dimensions
Second Shoulder Room (in)
49.7 -
Front Head Room (in)
40 39.1
Passenger Volume (ft³)
87 -
Front Shoulder Room (in)
56.9 55.5
Second Leg Room (in)
30.5 -
Passenger Capacity
4 2
Front Leg Room (in)
42.1 42.9
Second Head Room (in)
35.7 -
Front Hip Room (in)
- 53.6
Exterior Dimensions
Track Width, Front (in)
63 62.9
Min Ground Clearance (in)
4.9 -
Length, Overall (in)
192.8 181.6
Height, Overall (in)
53.9 51.8
Track Width, Rear (in)
65.6 63
Wheelbase (in)
112.4 101.8
Width, Max w/o mirrors (in)
74.6 73.9
Cargo Area Dimensions
Trunk Volume (ft³)
16.2 8.5
Brakes
Front Brake Rotor Diam x Thickness (in)
13.7 14.2
Drum - Rear (Yes or )
NA NA
Brake ABS System
4-Wheel 4-Wheel
Disc - Rear (Yes or )
Yes Yes
Rear Brake Rotor Diam x Thickness (in)
13.6 12.6
Brake Type
4-Wheel Disc 4-Wheel Disc
Rear Drum Diam x Width (in)
NA NA
Disc - Front (Yes or )
Yes Yes
Fuel Tank
Fuel Tank Capacity, Approx (gal)
18.5 19.8
Steering
Turning Diameter - Curb to Curb (ft)
38.4 36.2
Steering Type
Rack-Pinion Rack-Pinion
Tires
Rear Tire Order Code
NA NA
Front Tire Size
P245/45VR18 P255/40YR18
Spare Tire Size
NA NA
Front Tire Order Code
NA NA
Spare Tire Order Code
NA NA
Rear Tire Size
P245/45VR18 P285/35YR18
Weight Information
Base Curb Weight (lbs)
4001 -
Wheels
Front Wheel Size (in)
18 X 8 18 X 8.5
Spare Wheel Size (in)
NA NA
Rear Wheel Material
Aluminum Aluminum
Rear Wheel Size (in)
18 X 8 18 X 9.5
Front Wheel Material
Aluminum Aluminum
Spare Wheel Material
NA NA
Electrical
Maximum Alternator Capacity (amps)
210 -
Engine
SAE Net Torque @ RPM
330 @ 1400 354 @ 1600
Engine Order Code
NA NA
Displacement
3.0 L/182 3.0 L/183
SAE Net Horsepower @ RPM
315 @ 5800 329 @ 5250
Engine Type
Intercooled Turbo Premium Unleaded I-6 Twin Turbo Premium Unleaded V-6
Fuel System
Gasoline Direct Injection Gasoline Direct Injection
Mileage
EPA Fuel Economy Est - City (MPG)
21 20
Fuel Economy Est-Combined (MPG)
25 23
EPA Fuel Economy Est - Hwy (MPG)
32 27
Transmission
Eighth Gear Ratio (:1)
0.67 -
Sixth Gear Ratio (:1)
1.00 0.82
First Gear Ratio (:1)
4.71 4.38
Final Drive Axle Ratio (:1)
3.23 2.65
Third Gear Ratio (:1)
2.11 1.92
Trans Type
8 7
Seventh Gear Ratio (:1)
0.84 0.73
Drivetrain
Rear Wheel Drive Rear Wheel Drive
Fifth Gear Ratio (:1)
1.29 1.00
Trans Description Cont. Again
NA NA
Reverse Ratio (:1)
3.29 3.42
Second Gear Ratio (:1)
3.14 2.86
Trans Order Code
2TB 427
Fourth Gear Ratio (:1)
1.67 1.37
Trans Description Cont.
Automatic w/OD Automatic w/OD
Summary
Vehicle Name
BMW 6 Series Mercedes-Benz SL-Class
Body Style
Coupe Roadster
Suspension
Suspension Type - Front
Double Wishbone Multi-Link
Suspension Type - Front (Cont.)
Double Wishbone Multi-Link
Suspension Type - Rear
Multi-Link Multi-Link
Suspension Type - Rear (Cont.)
Multi-Link Multi-Link
Emissions
Tons/yr of CO2 Emissions @ 15K mi/year
7.0 -

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