Compare 2014 BMW 6-Series vs 2014 Mercedes-Benz SL Class

2014 BMW 6-Series
2014 Mercedes-Benz SL Class
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2-Door Conv 640i RWD
Style MPG City MPG Hwy Invoice MSRP
6 Series 2-Door Conv 640i RWD 20 30 $76,270 $82,900
6 Series 2-Door Conv 640i xDrive AWD 20 29 $79,030 $85,900
6 Series 2-Door Conv 650i RWD 17 25 $86,665 $94,200
6 Series 2-Door Conv 650i xDrive AWD 16 24 $89,425 $97,200
6 Series 2-Door Coupe 640i RWD 22 32 $69,370 $75,400
6 Series 2-Door Coupe 640i xDrive AWD 20 29 $72,130 $78,400
6 Series 2-Door Coupe 650i RWD 17 25 $79,765 $86,700
6 Series 2-Door Coupe 650i xDrive AWD 16 24 $82,525 $89,700
6 Series 4-Door Sedan 640i RWD Gran Coupe 20 30 $71,390 $77,600
6 Series 4-Door Sedan 640i xDrive AWD Gran Coupe 20 29 $74,150 $80,600
6 Series 4-Door Sedan 650i RWD Gran Coupe 17 25 $81,790 $88,900
6 Series 4-Door Sedan 650i xDrive AWD Gran Coupe 16 24 $84,550 $91,900
M6 2-Door Conv 14 20 $108,100 $117,500
M6 2-Door Coupe 14 20 $102,305 $111,200
M6 4-Door Gran Coupe 14 20 $105,800 $115,000
Select style
2-Door Roadster SL 550
Style MPG City MPG Hwy Invoice MSRP
SL-Class 2-Door Roadster SL 550 18 25 $99,231 $106,700
SL-Class 2-Door Roadster SL 63 AMG 16 25 $136,989 $147,300
SL-Class 2-Door Roadster SL 65 AMG 14 21 $199,485 $214,500
Pricing
Invoice Price
$76,270
$99,231
Manufacturer Suggested Retail Price
$82,900
$106,700
Monthly Payment Estimate
$1382 / month
$1778 / month
The Car Connection's Take
TCC Rating
8.4
8.2
TCC’s Bottom Line
No matter whether it's a coupe, convertible, or Gran Coupe, the 2014 BMW 6-Series covers soft and elegant as well as it does sharp and athletic. The 2014 Mercedes-Benz SL Class feels content as a grand tourer, but it's sportier than you might expect.
TCC Likes
TCC Dislikes
Fuel Economy
City
20 mpg 18 mpg
Highway
30 mpg 25 mpg
Vehicle
EPA Classification
Subcompact Cars Two-Seaters
Interior Dimensions
Passenger Capacity
4 2
Front Leg Room (in)
42.1 42.9
Second Head Room (in)
36.5 -
Second Shoulder Room (in)
49.6 -
Front Head Room (in)
40.3 39.1
Passenger Volume (ft³)
89 -
Front Shoulder Room (in)
56.9 55.5
Second Leg Room (in)
30.5 -
Front Hip Room (in)
- 53.6
Exterior Dimensions
Track Width, Rear (in)
65.2 63
Wheelbase (in)
112.4 101.8
Width, Max w/o mirrors (in)
74.6 73.9
Track Width, Front (in)
63 62.9
Min Ground Clearance (in)
4.8 -
Length, Overall (in)
192.8 181.6
Height, Overall (in)
53.7 51.8
Cargo Area Dimensions
Trunk Volume (ft³)
10.6 8.5
Brakes
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
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
Fuel Tank
Fuel Tank Capacity, Approx (gal)
18.5 19.8
Steering
Steering Type
Rack-Pinion Rack-Pinion
Turning Diameter - Curb to Curb (ft)
38.4 36.2
Tires
Spare Tire Order Code
NA NA
Rear Tire Size
P245/45VR18 P285/35YR18
Rear Tire Order Code
NA NA
Front Tire Size
P245/45VR18 P255/40YR18
Spare Tire Size
NA NA
Front Tire Order Code
NA NA
Weight Information
Base Curb Weight (lbs)
4255 3935
Wheels
Rear Wheel Size (in)
18 X 8 18 X 9.5
Front Wheel Material
Aluminum Aluminum
Spare Wheel Material
NA NA
Front Wheel Size (in)
18 X 8 18 X 8.5
Spare Wheel Size (in)
NA NA
Rear Wheel Material
Aluminum Aluminum
Electrical
Maximum Alternator Capacity (amps)
210 -
Engine
SAE Net Horsepower @ RPM
315 @ 5800 429 @ 5250
Engine Type
Intercooled Turbo Premium Unleaded I-6 Twin Turbo Premium Unleaded V-8
Fuel System
Gasoline Direct Injection Gasoline Direct Injection
SAE Net Torque @ RPM
330 @ 1400 516 @ 1800
Engine Order Code
NA NA
Displacement
3.0 L/182 4.7 L/285
Mileage
EPA Fuel Economy Est - Hwy (MPG)
30 25
EPA Fuel Economy Est - City (MPG)
20 18
Fuel Economy Est-Combined (MPG)
24 20
Transmission
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
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
Summary
Body Style
Convertible Roadster
Vehicle Name
BMW 6 Series Mercedes-Benz SL-Class
Suspension
Suspension Type - Rear
Multi-Link Multi-Link
Suspension Type - Rear (Cont.)
Multi-Link Multi-Link
Suspension Type - Front
Double Wishbone Multi-Link
Suspension Type - Front (Cont.)
Double Wishbone Multi-Link
Emissions
Tons/yr of CO2 Emissions @ 15K mi/year
7.5 9.2

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