Compare 2017 BMW 6-Series vs 2017 Mercedes-Benz CLS Class vs 2017 Mercedes-Benz SL Class

2017 BMW 6-Series
X
2017 Mercedes-Benz CLS Class
X
2017 Mercedes-Benz SL Class
X
Select style
640i Convertible
Style MPG City MPG Hwy Invoice MSRP
6 Series 640i Convertible 20 29 $79,645 $85,100
6 Series 640i Coupe 21 30 $72,670 $77,600
6 Series 640i Gran Coupe 20 29 $74,715 $79,800
6 Series 640i xDrive Convertible 19 28 $82,435 $88,100
6 Series 640i xDrive Coupe 19 28 $75,460 $80,600
6 Series 640i xDrive Gran Coupe 19 28 $77,505 $82,800
6 Series 650i Convertible 17 24 $90,245 $96,500
6 Series 650i Coupe 17 24 $83,270 $89,000
6 Series 650i Gran Coupe 17 24 $85,315 $91,200
6 Series 650i xDrive Convertible 15 24 $93,035 $99,500
6 Series 650i xDrive Coupe 16 24 $86,060 $92,000
6 Series 650i xDrive Gran Coupe 15 24 $88,105 $94,200
6 Series ALPINA B6 xDrive Gran Coupe 15 24 $114,425 $122,500
M6 Convertible 14 20 $112,100 $120,000
M6 Coupe 14 20 $106,240 $113,700
M6 Gran Coupe 14 20 $109,775 $117,500
Select style
AMG CLS 63 S 4MATIC Coupe
Style MPG City MPG Hwy Invoice MSRP
CLS AMG CLS 63 S 4MATIC Coupe 16 22 $101,277 $108,900
CLS CLS 550 4MATIC Coupe 17 25 $71,936 $77,350
CLS CLS 550 Coupe 18 26 $69,611 $74,850
Select style
AMG SL 63 Roadster
Style MPG City MPG Hwy Invoice MSRP
SL AMG SL 63 Roadster 16 25 $140,756 $151,350
SL AMG SL 65 Roadster 13 22 $204,461 $219,850
SL SL 450 Roadster 20 28 $80,864 $86,950
SL SL 550 Roadster 17 25 $103,044 $110,800
Pricing
Invoice Price
$79,645
$101,277
$140,756
Manufacturer Suggested Retail Price
$85,100
$108,900
$151,350
Monthly Payment Estimate
$1418 / month
$1815 / month
$2523 / month
The Car Connection's Take
TCC Rating
6.8
7.2
7.8
TCC’s Bottom Line
The 2017 BMW 6-Series is a luxurious jack of all trades (speed, style, comfort, and quality) but a master of one: grand touring. The 2017 Mercedes-Benz CLS-Class is the first of its kind and in need of a makeover. It's still timeless, but it's also time for what's next. The 2017 Mercedes-Benz SL-Class isn't quite a sports car, but it's a rapid, open-air touring coupe extraordinaire.
TCC Likes
TCC Dislikes
Fuel Economy
City
20 mpg 16 mpg 16 mpg
Highway
29 mpg 22 mpg 25 mpg
Vehicle
EPA Classification
Subcompact Cars Compact Cars Two-Seaters
Interior Dimensions
Passenger Capacity
4 4 2
Front Leg Room (in)
42.1 42.1 42.9
Second Head Room (in)
36.5 36.1 -
Second Shoulder Room (in)
49.6 56.5 -
Front Head Room (in)
40.3 36.9 39.1
Passenger Volume (ft³)
89 104.3 50.5
Front Shoulder Room (in)
56.9 57.1 55.5
Second Leg Room (in)
30.5 35 -
Second Hip Room (in)
- 57.6 -
Front Hip Room (in)
- 58 53.6
Exterior Dimensions
Track Width, Rear (in)
65.2 63.2 63.2
Wheelbase (in)
112.4 113.2 101.7
Width, Max w/o mirrors (in)
74.6 74.1 73.9
Track Width, Front (in)
63 63.9 63.1
Min Ground Clearance (in)
4.8 - -
Length, Overall (in)
192.8 196.7 182.7
Height, Overall (in)
53.7 55.4 51.2
Cargo Area Dimensions
Trunk Volume (ft³)
10.6 15.3 8.5
Brakes
Disc - Rear (Yes or )
Yes Yes Yes
Rear Brake Rotor Diam x Thickness (in)
13.6 14.2 14.2
Brake Type
4-Wheel Disc 4-Wheel Disc -
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 14.2 15.4
Drum - Rear (Yes or )
NA NA NA
Brake ABS System
4-Wheel 4-Wheel 4-Wheel
Fuel Tank
Fuel Tank Capacity, Approx (gal)
18.5 21.1 19.8
Steering
Steering Type
Rack-Pinion Rack-Pinion Rack-Pinion
Turning Diameter - Curb to Curb (ft)
38.4 37.1 36.4
Tires
Spare Tire Order Code
NA NA NA
Rear Tire Size
P245/45VR18 P285/30ZR19 P285/30YR19
Rear Tire Order Code
NA NA R01
Front Tire Size
P245/45VR18 P255/35ZR19 P255/35YR19
Spare Tire Size
NA Compact NA
Front Tire Order Code
NA NA R01
Weight Information
Base Curb Weight (lbs)
4255 4420 4068
Wheels
Rear Wheel Size (in)
18 X 8 19 X 9.5 19 X 10
Front Wheel Material
Aluminum Aluminum Aluminum
Spare Wheel Material
NA Steel NA
Front Wheel Size (in)
18 X 8 19 X 9 19 X 9
Spare Wheel Size (in)
NA Compact NA
Rear Wheel Material
Aluminum Aluminum Aluminum
Electrical
Maximum Alternator Capacity (amps)
210 180 -
Engine
SAE Net Horsepower @ RPM
315 @ 5800 550 @ 5500 577 @ 5500
Engine Type
Intercooled Turbo Premium Unleaded I-6 Twin Turbo Premium Unleaded V-8 Twin Turbo Premium Unleaded V-8
Fuel System
Gasoline Direct Injection Gasoline Direct Injection Gasoline Direct Injection
SAE Net Torque @ RPM
330 @ 1400 531 @ 1750 664 @ 2250
Engine Order Code
NA NA NA
Displacement
3.0 L/182 5.5 L/333 5.5 L/333
Mileage
EPA Fuel Economy Est - Hwy (MPG)
29 22 25
EPA Fuel Economy Est - City (MPG)
20 16 16
Fuel Economy Est-Combined (MPG)
23 18 19
Transmission
Fifth Gear Ratio (:1)
1.28 1.00 1.00
Trans Description Cont. Again
NA NA NA
Reverse Ratio (:1)
3.29 3.42 3.42
Second Gear Ratio (:1)
3.14 2.89 2.86
Trans Order Code
2TB NA 427
Fourth Gear Ratio (:1)
1.67 1.37 1.37
Trans Description Cont.
Automatic w/OD Automatic w/OD Automatic w/OD
Eighth Gear Ratio (:1)
0.67 - -
Sixth Gear Ratio (:1)
1.00 0.82 0.82
First Gear Ratio (:1)
4.71 4.34 4.38
Final Drive Axle Ratio (:1)
3.23 2.65 2.65
Third Gear Ratio (:1)
2.11 1.92 1.92
Trans Type
8 7 7
Seventh Gear Ratio (:1)
0.84 0.73 0.73
Drivetrain
Rear Wheel Drive All Wheel Rear Wheel Drive
Summary
Body Style
Convertible 4MATIC Roadster
Vehicle Name
BMW 6 Series Mercedes-Benz CLS Mercedes-Benz SL
Suspension
Suspension Type - Rear
Multi-Link Multi-Link Multi-Link
Suspension Type - Rear (Cont.)
Multi-Link Multi-Link Multi-Link
Suspension Type - Front
Double Wishbone Multi-Link Multi-Link
Suspension Type - Front (Cont.)
Double Wishbone Multi-Link Multi-Link
Emissions
Tons/yr of CO2 Emissions @ 15K mi/year
7.6 9.8 9.2
EPA Greenhouse Gas Score
- 3.0 -

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