Compare 2008 Audi R8 vs 2009 Mercedes-Benz SL Class

2008 Audi R8
2009 Mercedes-Benz SL Class
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2-Door Coupe Automatic quattro
Style MPG City MPG Hwy Invoice MSRP
R8 2-Door Coupe Automatic quattro 13 20 $109,740 $118,000
R8 2-Door Coupe Manual quattro 13 18 $101,370 $109,000
Select style
2-Door Coupe 6.0L AMG Black Series
Style MPG City MPG Hwy Invoice MSRP
SL-Class 2-Door Coupe 6.0L AMG Black Series 11 18 $278,070 $299,000
SL-Class 2-Door Roadster 5.5L V12 11 18 $129,363 $139,100
SL-Class 2-Door Roadster 5.5L V8 13 21 $91,605 $98,500
SL-Class 2-Door Roadster 6.0L AMG 11 18 $181,071 $194,700
SL-Class 2-Door Roadster 6.2L AMG 12 19 $125,550 $135,000
Pricing
Invoice Price
$109,740
$278,070
Manufacturer Suggested Retail Price
$118,000
$299,000
Monthly Payment Estimate
$1967 / month
$4983 / month
The Car Connection's Take
TCC Rating
8.4
8.4
TCC’s Bottom Line
The 2008 Audi R8 looks and sounds like an exotic, but it has the day-to-day livability and comfort of a grand-touring coupe. The SL’s new look isn’t to everyone’s liking, but in AMG guise, it’s now more punch than paunch—and a worthy stealth Ferrari-chaser.
TCC Likes
TCC Dislikes
Fuel Economy
City
13 mpg 11 mpg
Highway
20 mpg 18 mpg
Vehicle
EPA Classification
Compact 2 Seater
Interior Dimensions
Front Head Room (in)
37.7 37.7
Passenger Volume (ft³)
- TBD - 50.0
Front Shoulder Room (in)
52.4 54.0
Passenger Capacity
2 2
Front Leg Room (in)
- TBD - 42.9
Front Hip Room (in)
- TBD - 56.9
Exterior Dimensions
Min Ground Clearance (in)
- TBD - - TBD -
Length, Overall (in)
174.5 180.8
Height, Overall (in)
49.3 51.1
Track Width, Rear (in)
62.8 61.4
Wheelbase (in)
104.3 100.8
Liftover Height (in)
31.1 - TBD -
Width, Max w/o mirrors (in)
75.0 - TBD -
Track Width, Front (in)
64.3 61.8
Cargo Area Dimensions
Trunk Volume (ft³)
3.5 15.9 (7.2 w/top down)
Brakes
Front Brake Rotor Diam x Thickness (in)
- TBD - 15.4 x 1.4
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)
- TBD - 14.2 x 1.0
Brake Type
Pwr Pwr
Rear Drum Diam x Width (in)
NA NA
Disc - Front (Yes or )
Yes Yes
Fuel Tank
Fuel Tank Capacity, Approx (gal)
23.8 21.1
Steering
Turning Diameter - Wall to Wall (ft)
- TBD - - TBD -
Steering Ratio (:1), Overall
17.3 - TBD -
Turning Diameter - Curb to Curb (ft)
38.7 36.2
Steering Type
Pwr Rack & Pinion Pwr Rack & Pinion
Lock to Lock Turns (Steering)
- TBD - 2.6
Tires
Rear Tire Size
P285/35R18 P325/30ZR20
Rear Tire Order Code
NA NA
Front Tire Size
P235/40R18 P265/35ZR19
Spare Tire Size
NA Compact
Front Tire Order Code
NA NA
Spare Tire Order Code
NA NA
Trailering
Dead Weight Hitch - Max Tongue Wt. (lbs)
NA - TBD -
Wt Distributing Hitch - Max Tongue Wt. (lbs)
NA NA
Dead Weight Hitch - Max Trailer Wt. (lbs)
NA - TBD -
Wt Distributing Hitch - Max Trailer Wt. (lbs)
NA NA
Weight Information
Base Curb Weight (lbs)
3615 4345
Wheels
Front Wheel Material
Alloy Aluminum
Spare Wheel Material
NA - TBD -
Front Wheel Size (in)
18 x 8.5 19 x 9.5
Spare Wheel Size (in)
NA - TBD -
Rear Wheel Material
Alloy Aluminum
Rear Wheel Size (in)
18 x 10.5 20 x 11.5
Cooling System
Total Cooling System Capacity (qts)
24.3 - TBD -
Electrical
Cold Cranking Amps @ 0° F (Primary)
520 - TBD -
Maximum Alternator Capacity (amps)
190 - TBD -
Engine
Displacement
4.2L/254 6.0L/- TBD -
SAE Net Horsepower @ RPM
420 @ 7800 661 @ 5400
Engine Type
Gas V8 Bi-Turbocharged Gas V12
Fuel System
FSI Direct SMPI
SAE Net Torque @ RPM
317 @ 4500-6000 738 @ 2200-4200
Engine Order Code
NA NA
Mileage
EPA Fuel Economy Est - City (MPG)
13 11 (Est)
EPA Fuel Economy Est - Hwy (MPG)
20 18 (Est)
Fuel Economy Est-Combined (MPG)
- 14 (Est)
Transmission
Trans Type
6 5
Fifth Gear Ratio (:1)
1.13 0.83
Trans Description Cont. Again
NA NA
Drivetrain
All-Wheel Drive Rear Wheel Drive
Reverse Ratio (:1)
3.71 3.16
Second Gear Ratio (:1)
2.71 2.19
Trans Order Code
NA NA
Final Drive Axle Ratio (:1)
3.46 - TBD -
Fourth Gear Ratio (:1)
1.41 1.00
Trans Description Cont.
Automatic Automatic w/OD
Sixth Gear Ratio (:1)
0.93 NA
First Gear Ratio (:1)
4.37 3.60
Clutch Size (in)
NA NA
Third Gear Ratio (:1)
1.88 1.41
Seventh Gear Ratio (:1)
- NA
Summary
Vehicle Name
Audi R8 Mercedes-Benz SL-Class
Body Style
2 Door Coupe 2 Door Convertible
Suspension
Stabilizer Bar Diameter - Rear (in)
- TBD - - TBD -
Suspension Type - Front (Cont.)
NA 4-Link
Shock Absorber Diameter - Front (mm)
- TBD - - TBD -
Stabilizer Bar Diameter - Front (in)
- TBD - - TBD -
Suspension Type - Rear
4-Link Independent
Suspension Type - Rear (Cont.)
NA 5-Arm Multi-Link
Shock Absorber Diameter - Rear (mm)
- TBD - - TBD -
Suspension Type - Front
4-Link Independent
Emissions
EPA Greenhouse Gas Score
- 1 (Est)

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