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Compare 2008 Mercedes-Benz SL Class vs 2008 Audi R8

2008 Mercedes-Benz SL Class Change
2008 Audi R8 Change
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Selected Style 2-Door Roadster 5.5L V8
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Body Style

Engine

Trim

Other

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
2-Door Coupe Manual quattro *Ltd Avail*
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Body Style

Transmission

Drivetrain

Style MPG City MPG Hwy Invoice MSRP
2-Door Coupe Manual quattro 13 18 $101,370 $109,000
2-Door Coupe Automatic quattro 13 20 $109,740 $118,000
Pricing
Invoice Price
$88,629
$101,370
Manufacturer Suggested Retail Price
$95,300
$109,000
Monthly Payment Estimate
$1588 / month
$1817 / month
Dealer Price Quotes
The Car Connection's Take
TCC Rating
8.4
/ 10
TCC Rating
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8.4
/ 10
TCC Rating
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Read Our Full Review
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 Audi R8 looks and sounds like an exotic, but it has the day-to-day livability and comfort of a grand-touring coupe.
TCC Likes
TCC Dislikes
Fuel Economy
Fuel Economy - City 14 mpg 13 mpg
Fuel Economy - Highway 14 mpg 13 mpg
Vehicle
EPA Classification 2 Seater Compact
Interior Dimensions
Passenger Capacity 2 2
Front Leg Room (in) 42.9 - TBD -
Front Hip Room (in) - TBD - - TBD -
Front Head Room (in) 37.7 37.7
Passenger Volume (ft³) 57.8 - TBD -
Front Shoulder Room (in) 54.0 52.4
Exterior Dimensions
Track Width, Rear (in) 60.5 62.8
Wheelbase (in) 100.8 104.3
Liftover Height (in) - TBD - 31.1
Width, Max w/o mirrors (in) 80.0 75.0
Track Width, Front (in) 61.4 64.3
Min Ground Clearance (in) - TBD - - TBD -
Length, Overall (in) 178.5 174.5
Height, Overall (in) 51.0 49.3
Cargo Area Dimensions
Trunk Volume (ft³) 10.2 (7.2 w/top down) 3.5
Brakes
Disc - Rear (Yes or ) Yes Yes
Rear Brake Rotor Diam x Thickness (in) 11.8 x - TBD - - TBD -
Brake Type Power Pwr
Rear Drum Diam x Width (in) NA NA
Disc - Front (Yes or ) Yes Yes
Front Brake Rotor Diam x Thickness (in) 13.0 x - TBD - - TBD -
Drum - Rear (Yes or ) NA NA
Brake ABS System 4-Wheel 4-wheel
Fuel Tank
Fuel Tank Capacity, Approx (gal) 21.1 23.8
Steering
Steering Ratio (:1), Overall - TBD - 17.3
Turning Diameter - Curb to Curb (ft) 36.2 38.7
Steering Type Pwr Rack-&-pinion Pwr Rack & Pinion
Lock to Lock Turns (Steering) 2.6 - TBD -
Turning Diameter - Wall to Wall (ft) - TBD - - TBD -
Tires
Front Tire Size P255/40R18 P235/40R18
Spare Tire Size Compact NA
Front Tire Order Code NA NA
Spare Tire Order Code NA NA
Rear Tire Size P285/35R18 P285/35R18
Rear Tire Order Code NA NA
Trailering
Dead Weight Hitch - Max Trailer Wt. (lbs) - TBD - NA
Wt Distributing Hitch - Max Trailer Wt. (lbs) NA NA
Dead Weight Hitch - Max Tongue Wt. (lbs) - TBD - NA
Wt Distributing Hitch - Max Tongue Wt. (lbs) NA NA
Weight Information
Base Curb Weight (lbs) 4220 3605
Wheels
Spare Wheel Size (in) - TBD - NA
Rear Wheel Material Aluminum Alloy
Rear Wheel Size (in) 18 x 9.5 18 x 10.5
Front Wheel Material Aluminum Alloy
Spare Wheel Material - TBD - NA
Front Wheel Size (in) 18 x 8.5 18 x 8.5
Cooling System
Total Cooling System Capacity (qts) - TBD - 24.3
Electrical
Maximum Alternator Capacity (amps) - TBD - 190
Cold Cranking Amps @ 0° F (Primary) - TBD - 520
Engine
Engine Type Gas V8 Gas V8
Fuel System SMPI FSI Direct
SAE Net Torque @ RPM 391 @ 2800-4800 317 @ 4500-6000
Engine Order Code NA NA
Displacement 5.5L/333 4.2L/254
SAE Net Horsepower @ RPM 382 @ 6000 420 @ 7800
Mileage
EPA Fuel Economy Est - Hwy (MPG) 21 18
EPA Fuel Economy Est - City (MPG) 14 13
Transmission
Second Gear Ratio (:1) - TBD - 2.71
Trans Order Code NA NA
Final Drive Axle Ratio (:1) 2.65 3.46
Fourth Gear Ratio (:1) - TBD - 1.41
Trans Description Cont. Automatic w/OD Manual
Sixth Gear Ratio (:1) - TBD - 0.93
First Gear Ratio (:1) - TBD - 4.37
Seventh Gear Ratio (:1) - TBD - -
Clutch Size (in) NA NA
Third Gear Ratio (:1) - TBD - 1.88
Trans Type 7 6
Fifth Gear Ratio (:1) - TBD - 1.13
Trans Description Cont. Again NA NA
Drivetrain Rear Wheel Drive All-Wheel Drive
Reverse Ratio (:1) - TBD - 3.71
Summary
Body Style 2 Door Convertible 2 Door Coupe
Vehicle Name Mercedes-Benz SL-Class Audi R8
Suspension
Stabilizer Bar Diameter - Front (in) - TBD - - TBD -
Suspension Type - Rear Independent 4-Link
Suspension Type - Rear (Cont.) Multi-link NA
Shock Absorber Diameter - Rear (mm) - TBD - - TBD -
Suspension Type - Front Independent 4-Link
Stabilizer Bar Diameter - Rear (in) - TBD - - TBD -
Suspension Type - Front (Cont.) 4-Link NA
Shock Absorber Diameter - Front (mm) - TBD - - TBD -
 
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