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

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

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