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Compare 2008 Cadillac XLR vs 2009 Mercedes-Benz SL Class

2008 Cadillac XLR Change
2009 Mercedes-Benz SL Class Change
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Selected Style 2-Door Convertible 2-Door Roadster 5.5L V8
Switch Style

Body Style

Engine

Trim

Other

Style MPG City MPG Hwy Invoice MSRP
2-Door Roadster 5.5L V8 13 21 $91,605 $98,500
2-Door Roadster 5.5L V12 11 18 $129,363 $139,100
2-Door Roadster 6.2L AMG 12 19 $125,550 $135,000
2-Door Roadster 6.0L AMG 11 18 $181,071 $194,700
2-Door Coupe 6.0L AMG Black Series 11 18 $278,070 $299,000
Pricing
Invoice Price
$75,407
$91,605
Manufacturer Suggested Retail Price
$80,650
$98,500
Monthly Payment Estimate
$1344 / month
$1642 / month
Dealer Price Quotes
The Car Connection's Take
TCC Rating
8.6
/ 10
TCC Rating
How does the
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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
8.4
/ 10
TCC Rating
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Read Our Full Review
TCC's Bottom Line The 2008 Cadillac XLR still manages to turn heads with its style. 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
Fuel Economy - City 15 mpg 13 mpg
Fuel Economy - Highway 24 mpg 21 mpg
Vehicle
EPA Classification Two-seater 2 Seater
Interior Dimensions
Front Hip Room (in) 53.0 56.9
Front Head Room (in) 37.6 37.7
Passenger Volume (ft³) - TBD - 50.0
Front Shoulder Room (in) 54.3 54.0
Passenger Capacity 2 2
Front Leg Room (in) 42.6 42.9
Exterior Dimensions
Track Width, Front (in) 62.2 61.4
Min Ground Clearance (in) - TBD - - TBD -
Length, Overall (in) 177.7 180.4
Height, Overall (in) 50.4 51.1
Track Width, Rear (in) 62.2 60.5
Wheelbase (in) 105.7 100.8
Liftover Height (in) - TBD - - TBD -
Width, Max w/o mirrors (in) 72.3 - TBD -
Cargo Area Dimensions
Trunk Volume (ft³) 11.6 max 4.4 min 10.2 (7.2 w/top down)
Brakes
Rear Drum Diam x Width (in) NA NA
Disc - Front (Yes or ) Yes Yes
Front Brake Rotor Diam x Thickness (in) 12.8 x 1.3 13.0 x 1.1
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) 12.0 x 1.0 11.8 x 0.4
Brake Type Pwr Pwr
Fuel Tank
Fuel Tank Capacity, Approx (gal) 18 21.1
Steering
Lock to Lock Turns (Steering) 2.9 2.6
Turning Diameter - Wall to Wall (ft) - TBD - - TBD -
Steering Ratio (:1), Overall 17.2 - TBD -
Turning Diameter - Curb to Curb (ft) 39 36.2
Steering Type Pwr Rack & Pinion Pwr Rack & Pinion
Tires
Spare Tire Order Code NA NA
Rear Tire Size P235/50WR18 P285/35WR18
Rear Tire Order Code QMS NA
Front Tire Size P235/50WR18 P255/40ZR18
Spare Tire Size - TBD - Compact
Front Tire Order Code QMS 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) 3647 4220
Wheels
Rear Wheel Size (in) 18 x - TBD - 18 x 9.5
Front Wheel Material Aluminum Aluminum
Spare Wheel Material - TBD - - TBD -
Front Wheel Size (in) 18 x - TBD - 18 x 8.5
Spare Wheel Size (in) - TBD - - TBD -
Rear 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) 150 - TBD -
Engine
SAE Net Torque @ RPM 310 @ 4400 391 @ 2800-4000
Engine Order Code LH2 NA
Displacement 4.6L/279 5.5L/333
SAE Net Horsepower @ RPM 320 @ 6400 382 @ 6000
Engine Type Gas V8 Gas V8
Fuel System SFI SFI
Mileage
EPA Fuel Economy Est - Hwy (MPG) 24 21
EPA Fuel Economy Est - City (MPG) 15 13
Fuel Economy Est-Combined (MPG) - 16
Transmission
Clutch Size (in) NA NA
Third Gear Ratio (:1) 1.53 1.92
Trans Type 6 7
Fifth Gear Ratio (:1) 0.85 1.00
Trans Description Cont. Again NA NA
Drivetrain Rear Wheel Drive Rear Wheel Drive
Reverse Ratio (:1) 3.06 3.42 (R2 2.23)
Second Gear Ratio (:1) 2.36 2.86
Trans Order Code MX0 NA
Final Drive Axle Ratio (:1) 2.73 - TBD -
Fourth Gear Ratio (:1) 1.15 1.37
Trans Description Cont. Automatic w/OD Automatic w/OD
Sixth Gear Ratio (:1) 0.67 0.82
First Gear Ratio (:1) 4.03 4.38
Seventh Gear Ratio (:1) - 0.73
Summary
Vehicle Name Cadillac XLR Mercedes-Benz SL-Class
Body Style 2 Door Conv 2 Door Convertible
Suspension
Shock Absorber Diameter - Rear (mm) - TBD - - TBD -
Suspension Type - Front Independent Independent
Stabilizer Bar Diameter - Rear (in) - TBD - - TBD -
Suspension Type - Front (Cont.) SLA double wishbone 4-Link
Shock Absorber Diameter - Front (mm) - TBD - - TBD -
Stabilizer Bar Diameter - Front (in) - TBD - - TBD -
Suspension Type - Rear Independent Independent
Suspension Type - Rear (Cont.) SLA double wishbone 5-Arm Multi-Link
Emissions
EPA Greenhouse Gas Score - 3
 
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