Compare 2008 Mercedes-Benz SL Class vs 2008 Porsche 911

2008 Mercedes-Benz SL Class
2008 Porsche 911
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2-Door Roadster 5.5L V8
Style MPG City MPG Hwy Invoice MSRP
2-Door Roadster 5.5L V8 14 21 $88,629 $95,300
2-Door Roadster 5.5L AMG 12 17 $120,249 $129,300
2-Door Roadster 5.5L V12 11 18 $123,876 $133,200
2-Door Roadster 6.0L AMG 11 18 $174,096 $187,200
Select style
2-Door Coupe Carrera
Style MPG City MPG Hwy Invoice MSRP
2-Door Coupe Carrera 18 26 $64,174 $73,500
2-Door Coupe Carrera 4 17 25 $69,340 $79,400
2-Door Coupe Carrera S 17 25 $73,192 $83,800
2-Door Targa 4 17 25 $75,993 $87,000
2-Door Cabriolet Carrera 18 26 $78,357 $89,700
2-Door Cabriolet Carrera 4 17 25 $78,357 $89,700
2-Door Coupe Carrera 4S 17 23 $78,357 $89,700
2-Door Cabriolet Carrera S 17 25 $82,209 $94,100
2-Door Targa 4S 17 23 $85,011 $97,300
2-Door Cabriolet Carrera 4S 17 23 $87,375 $100,000
2-Door Coupe GT3 15 22 $93,941 $107,500
2-Door Coupe GT3 RS 15 22 $109,175 $124,900
2-Door Coupe Turbo 16 23 $110,313 $126,200
2-Door Cabriolet Turbo 15 24 $119,331 $136,500
2-Door Coupe GT2 16 23 $177,904 $191,700
Pricing
Invoice Price
$88,629
$64,174
Manufacturer Suggested Retail Price
$95,300
$73,500
Monthly Payment Estimate
$1588 / month
$1225 / month
The Car Connection's Take
TCC Rating
8.4
9.2
TCC’s Bottom Line
Think of the 2008 Mercedes-Benz SL-Class as a big, luxurious grand tourer with a little bit of sportscar soul, and you're on the right track. The 2008 Porsche 911 has few peers in performance or in endurance.
TCC Likes
TCC Dislikes
Fuel Economy
City
14 mpg 18 mpg
Highway
21 mpg 26 mpg
Vehicle
EPA Classification
2 Seater Mini-Compact
Interior Dimensions
Front Head Room (in)
37.7 - TBD -
Passenger Volume (ft³)
57.8 - TBD -
Front Shoulder Room (in)
54.0 - TBD -
Passenger Capacity
2 4
Front Leg Room (in)
42.9 - TBD -
Front Hip Room (in)
- TBD - - TBD -
Second Leg Room (in)
- - TBD -
Second Hip Room (in)
- - TBD -
Second Head Room (in)
- - TBD -
Second Shoulder Room (in)
- - TBD -
Exterior Dimensions
Length, Overall (in)
178.5 175.6
Height, Overall (in)
51.0 51.6
Track Width, Rear (in)
60.5 60.4
Wheelbase (in)
100.8 92.5
Liftover Height (in)
- TBD - - TBD -
Width, Max w/o mirrors (in)
80.0 71.2
Track Width, Front (in)
61.4 58.5
Min Ground Clearance (in)
- TBD - - TBD -
Cargo Area Dimensions
Trunk Volume (ft³)
10.2 (7.2 w/top down) 4.8
Brakes
Front Brake Rotor Diam x Thickness (in)
13.0 x - TBD - 12.52 x 1.10
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)
11.8 x - TBD - 11.78 x 0.95
Brake Type
Power Pwr
Rear Drum Diam x Width (in)
NA NA
Disc - Front (Yes or )
Yes Yes
Fuel Tank
Fuel Tank Capacity, Approx (gal)
21.1 16.9
Steering
Turning Diameter - Wall to Wall (ft)
- TBD - - TBD -
Steering Ratio (:1), Overall
- TBD - - TBD -
Turning Diameter - Curb to Curb (ft)
36.2 - TBD -
Steering Type
Pwr Rack-&-pinion Pwr Rack & Pinion
Lock to Lock Turns (Steering)
2.6 - TBD -
Tires
Rear Tire Order Code
NA NA
Front Tire Size
P255/40R18 P235/40ZR18
Spare Tire Size
Compact NA
Front Tire Order Code
NA NA
Spare Tire Order Code
NA NA
Rear Tire Size
P285/35R18 P265/40ZR18
Trailering
Dead Weight Hitch - Max Tongue Wt. (lbs)
- TBD - - TBD -
Wt Distributing Hitch - Max Tongue Wt. (lbs)
NA - TBD -
Dead Weight Hitch - Max Trailer Wt. (lbs)
- TBD - - TBD -
Wt Distributing Hitch - Max Trailer Wt. (lbs)
NA - TBD -
Weight Information
Base Curb Weight (lbs)
4220 3075
Wheels
Spare Wheel Material
- TBD - NA
Front Wheel Size (in)
18 x 8.5 18 x 8
Spare Wheel Size (in)
- TBD - NA
Rear Wheel Material
Aluminum Aluminum
Rear Wheel Size (in)
18 x 9.5 18 x 10
Front Wheel Material
Aluminum Aluminum
Cooling System
Total Cooling System Capacity (qts)
- TBD - - TBD -
Electrical
Cold Cranking Amps @ 0° F (Primary)
- TBD - - TBD -
Maximum Alternator Capacity (amps)
- TBD - NA
Engine
SAE Net Horsepower @ RPM
382 @ 6000 325 @ 6800
Engine Type
Gas V8 Gas Flat 6-cyl
Fuel System
SMPI EFI
SAE Net Torque @ RPM
391 @ 2800-4800 273 @ 4250
Engine Order Code
NA NA
Displacement
5.5L/333 3.6L/219
Mileage
EPA Fuel Economy Est - City (MPG)
14 18
EPA Fuel Economy Est - Hwy (MPG)
21 26
Transmission
Fifth Gear Ratio (:1)
- TBD - 1.08
Trans Description Cont. Again
NA NA
Drivetrain
Rear Wheel Drive Rear Wheel Drive
Reverse Ratio (:1)
- TBD - 3.59
Second Gear Ratio (:1)
- TBD - 2.32
Trans Order Code
NA NA
Final Drive Axle Ratio (:1)
2.65 3.44
Fourth Gear Ratio (:1)
- TBD - 1.28
Trans Description Cont.
Automatic w/OD Manual w/OD
Sixth Gear Ratio (:1)
- TBD - 0.88
First Gear Ratio (:1)
- TBD - 3.91
Seventh Gear Ratio (:1)
- TBD - -
Clutch Size (in)
NA 9.45
Third Gear Ratio (:1)
- TBD - 1.61
Trans Type
7 6
Summary
Vehicle Name
Mercedes-Benz SL-Class Porsche 911
Body Style
2 Door Convertible 2 Door Coupe
Suspension
Stabilizer Bar Diameter - Rear (in)
- TBD - - TBD -
Suspension Type - Front (Cont.)
4-Link w/Coil Springs
Shock Absorber Diameter - Front (mm)
- TBD - - TBD -
Stabilizer Bar Diameter - Front (in)
- TBD - - TBD -
Suspension Type - Rear
Independent Multi-Link
Suspension Type - Rear (Cont.)
Multi-link w/Coil Springs
Shock Absorber Diameter - Rear (mm)
- TBD - - TBD -
Suspension Type - Front
Independent MacPherson Strut

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