Compare 2008 Cadillac XLR vs 2008 Mercedes-Benz SL Class

2008 Cadillac XLR
2008 Mercedes-Benz SL Class
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2-Door Conv
Style MPG City MPG Hwy Invoice MSRP
XLR 2-Door Conv 15 24 $75,407 $80,650
XLR-V 2-Door Conv 14 21 $87,756 $99,160
Select style
2-Door Roadster 5.5L AMG
Style MPG City MPG Hwy Invoice MSRP
SL-Class 2-Door Roadster 5.5L AMG 12 17 $120,249 $129,300
SL-Class 2-Door Roadster 5.5L V12 11 18 $123,876 $133,200
SL-Class 2-Door Roadster 5.5L V8 14 21 $88,629 $95,300
SL-Class 2-Door Roadster 6.0L AMG 11 18 $174,096 $187,200
Pricing
Invoice Price
$75,407
$120,249
Manufacturer Suggested Retail Price
$80,650
$129,300
Monthly Payment Estimate
$1344 / month
$2155 / month
The Car Connection's Take
TCC Rating
8.6
8.4
TCC’s Bottom Line
The 2008 Cadillac XLR-V marries a folding convertible top with Corvette-style performance--what’s not to love? 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.
TCC Likes
TCC Dislikes
Fuel Economy
City
15 mpg 12 mpg
Highway
24 mpg 17 mpg
Vehicle
EPA Classification
Two-seater 2 Seater
Interior Dimensions
Passenger Capacity
2 2
Front Leg Room (in)
42.6 42.9
Front Hip Room (in)
53.0 - TBD -
Front Head Room (in)
37.6 37.7
Passenger Volume (ft³)
- TBD - 57.8
Front Shoulder Room (in)
54.3 54.0
Exterior Dimensions
Liftover Height (in)
- TBD - - TBD -
Width, Max w/o mirrors (in)
72.3 80.0
Track Width, Front (in)
62.2 61.8
Min Ground Clearance (in)
- TBD - - TBD -
Length, Overall (in)
177.7 178.5
Height, Overall (in)
50.4 51.0
Track Width, Rear (in)
62.2 61.1
Wheelbase (in)
105.7 100.8
Cargo Area Dimensions
Trunk Volume (ft³)
11.6 max 4.4 min 10.2 (7.2 w/top down)
Brakes
Disc - Rear (Yes or )
Yes Yes
Rear Brake Rotor Diam x Thickness (in)
12.0 x 1.0 13.0 x - TBD -
Brake Type
Pwr Power
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 14.2 x - TBD -
Drum - Rear (Yes or )
NA NA
Brake ABS System
4-Wheel 4-Wheel
Fuel Tank
Fuel Tank Capacity, Approx (gal)
18 21.1
Steering
Turning Diameter - Curb to Curb (ft)
39 36.2
Steering Type
Pwr Rack & Pinion Pwr Rack-&-pinion
Lock to Lock Turns (Steering)
2.9 2.6
Turning Diameter - Wall to Wall (ft)
- TBD - - TBD -
Steering Ratio (:1), Overall
17.2 - TBD -
Tires
Spare Tire Size
- TBD - Compact
Front Tire Order Code
QMS NA
Spare Tire Order Code
NA NA
Rear Tire Size
P235/50WR18 P285/30R19
Rear Tire Order Code
QMS NA
Front Tire Size
P235/50WR18 P255/35R19
Trailering
Wt Distributing Hitch - Max Trailer Wt. (lbs)
NA NA
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 -
Weight Information
Base Curb Weight (lbs)
3647 4365
Wheels
Rear Wheel Material
Aluminum Aluminum
Rear Wheel Size (in)
18 x - TBD - 19 x 9.5
Front Wheel Material
Aluminum Aluminum
Spare Wheel Material
- TBD - - TBD -
Front Wheel Size (in)
18 x - TBD - 19 x 8.5
Spare Wheel Size (in)
- TBD - - TBD -
Cooling System
Total Cooling System Capacity (qts)
- TBD - - TBD -
Electrical
Maximum Alternator Capacity (amps)
150 - TBD -
Cold Cranking Amps @ 0° F (Primary)
- TBD - - TBD -
Engine
Fuel System
SFI SMPI
SAE Net Torque @ RPM
310 @ 4400 531 @ 2600-4000
Engine Order Code
LH2 NA
Displacement
4.6L/279 5.5L/332
SAE Net Horsepower @ RPM
320 @ 6400 510 @ 6100
Engine Type
Gas V8 Gas V8
Mileage
EPA Fuel Economy Est - Hwy (MPG)
24 17
EPA Fuel Economy Est - City (MPG)
15 12
Transmission
Final Drive Axle Ratio (:1)
2.73 2.82
Fourth Gear Ratio (:1)
1.15 - TBD -
Trans Description Cont.
Automatic w/OD Automatic w/OD
Sixth Gear Ratio (:1)
0.67 NA
First Gear Ratio (:1)
4.03 - TBD -
Clutch Size (in)
NA NA
Third Gear Ratio (:1)
1.53 - TBD -
Trans Type
6 5
Fifth Gear Ratio (:1)
0.85 - TBD -
Trans Description Cont. Again
NA NA
Drivetrain
Rear Wheel Drive Rear Wheel Drive
Reverse Ratio (:1)
3.06 - TBD -
Second Gear Ratio (:1)
2.36 - TBD -
Trans Order Code
MX0 NA
Seventh Gear Ratio (:1)
- NA
Summary
Body Style
2 Door Conv 2 Door Convertible
Vehicle Name
Cadillac XLR Mercedes-Benz SL-Class
Suspension
Suspension Type - Rear
Independent Independent
Suspension Type - Rear (Cont.)
SLA double wishbone Multi-link
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 -

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