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Compare 2008 Mercedes-Benz SL Class vs 2008 Cadillac XLR

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

Engine

Trim

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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 Convertible
Pricing
Invoice Price
$88,629
$75,407
Manufacturer Suggested Retail Price
$95,300
$80,650
Monthly Payment Estimate
$1588 / month
$1344 / month
Dealer Price Quotes
The Car Connection's Take
TCC Rating
8.4
/ 10
TCC Rating
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or “Go” (green) messages along with the numerical score so you can easily understand where we stand at a glance.

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Read Our Full Review
8.6
/ 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 Cadillac XLR still manages to turn heads with its style.
TCC Likes
TCC Dislikes
Fuel Economy
Fuel Economy - City 14 mpg 15 mpg
Fuel Economy - Highway 21 mpg 24 mpg
Vehicle
EPA Classification 2 Seater Two-seater
Interior Dimensions
Front Leg Room (in) 42.9 42.6
Front Hip Room (in) - TBD - 53.0
Front Head Room (in) 37.7 37.6
Passenger Volume (ft³) 57.8 - TBD -
Front Shoulder Room (in) 54.0 54.3
Passenger Capacity 2 2
Exterior Dimensions
Track Width, Front (in) 61.4 62.2
Min Ground Clearance (in) - TBD - - TBD -
Length, Overall (in) 178.5 177.7
Height, Overall (in) 51.0 50.4
Track Width, Rear (in) 60.5 62.2
Wheelbase (in) 100.8 105.7
Liftover Height (in) - TBD - - TBD -
Width, Max w/o mirrors (in) 80.0 72.3
Cargo Area Dimensions
Trunk Volume (ft³) 10.2 (7.2 w/top down) 11.6 max 4.4 min
Brakes
Rear Brake Rotor Diam x Thickness (in) 11.8 x - TBD - 12.0 x 1.0
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 - 12.8 x 1.3
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) 21.1 18
Steering
Steering Type Pwr Rack-&-pinion Pwr Rack & Pinion
Lock to Lock Turns (Steering) 2.6 2.9
Turning Diameter - Wall to Wall (ft) - TBD - - TBD -
Steering Ratio (:1), Overall - TBD - 17.2
Turning Diameter - Curb to Curb (ft) 36.2 39
Tires
Spare Tire Order Code NA NA
Rear Tire Size P285/35R18 P235/50WR18
Rear Tire Order Code NA QMS
Front Tire Size P255/40R18 P235/50WR18
Spare Tire Size Compact - TBD -
Front Tire Order Code NA QMS
Trailering
Dead Weight Hitch - Max Tongue Wt. (lbs) - TBD - NA
Wt Distributing Hitch - Max Tongue Wt. (lbs) NA NA
Dead Weight Hitch - Max Trailer Wt. (lbs) - TBD - NA
Wt Distributing Hitch - Max Trailer Wt. (lbs) NA NA
Weight Information
Base Curb Weight (lbs) 4220 3647
Wheels
Rear Wheel Size (in) 18 x 9.5 18 x - TBD -
Front Wheel Material Aluminum Aluminum
Spare Wheel Material - TBD - - TBD -
Front Wheel Size (in) 18 x 8.5 18 x - TBD -
Spare Wheel Size (in) - TBD - - TBD -
Rear Wheel Material Aluminum Aluminum
Cooling System
Total Cooling System Capacity (qts) - TBD - - TBD -
Electrical
Maximum Alternator Capacity (amps) - TBD - 150
Cold Cranking Amps @ 0° F (Primary) - TBD - - TBD -
Engine
SAE Net Torque @ RPM 391 @ 2800-4800 310 @ 4400
Engine Order Code NA LH2
Displacement 5.5L/333 4.6L/279
SAE Net Horsepower @ RPM 382 @ 6000 320 @ 6400
Engine Type Gas V8 Gas V8
Fuel System SMPI SFI
Mileage
EPA Fuel Economy Est - Hwy (MPG) 21 24
EPA Fuel Economy Est - City (MPG) 14 15
Transmission
Sixth Gear Ratio (:1) - TBD - 0.67
First Gear Ratio (:1) - TBD - 4.03
Seventh Gear Ratio (:1) - TBD - -
Clutch Size (in) NA NA
Third Gear Ratio (:1) - TBD - 1.53
Trans Type 7 6
Fifth Gear Ratio (:1) - TBD - 0.85
Trans Description Cont. Again NA NA
Drivetrain Rear Wheel Drive Rear Wheel Drive
Reverse Ratio (:1) - TBD - 3.06
Second Gear Ratio (:1) - TBD - 2.36
Trans Order Code NA MX0
Final Drive Axle Ratio (:1) 2.65 2.73
Fourth Gear Ratio (:1) - TBD - 1.15
Trans Description Cont. Automatic w/OD Automatic w/OD
Summary
Body Style 2 Door Convertible 2 Door Conv
Vehicle Name Mercedes-Benz SL-Class Cadillac XLR
Suspension
Suspension Type - Rear (Cont.) Multi-link SLA double wishbone
Shock Absorber Diameter - Rear (mm) - TBD - - TBD -
Suspension Type - Front Independent Independent
Stabilizer Bar Diameter - Rear (in) - TBD - - TBD -
Suspension Type - Front (Cont.) 4-Link SLA double wishbone
Shock Absorber Diameter - Front (mm) - TBD - - TBD -
Stabilizer Bar Diameter - Front (in) - TBD - - TBD -
Suspension Type - Rear Independent Independent
 
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