Compare 2009 INFINITI QX56 vs 2009 Mercedes-Benz M Class

2009 INFINITI QX56
2009 Mercedes-Benz M Class
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RWD 4-Door
Select style
RWD 4-Door 3.5L
Style MPG City MPG Hwy Invoice MSRP
RWD 4-Door 3.5L 16 21 $41,478 $44,600
4MATIC 4-Door 3.5L 15 20 $43,803 $47,100
4MATIC 4-Door 3.0L BlueTEC 18 24 $45,198 $48,600
4MATIC 4-Door 5.5L 13 18 $51,894 $55,800
4MATIC 4-Door 6.3L AMG 11 15 $83,793 $90,100
Pricing
Invoice Price
$50,806
$41,478
Manufacturer Suggested Retail Price
$55,050
$44,600
Monthly Payment Estimate
$918 / month
$743 / month
The Car Connection's Take
TCC Rating
8.2
8.6
TCC’s Bottom Line
It ain’t cheap, but the 2009 Mercedes-Benz M-Class deserves its place atop the luxury SUV echelon.
TCC Likes
TCC Dislikes
Fuel Economy
City
12 mpg 16 mpg
Highway
18 mpg 21 mpg
Vehicle
EPA Classification
2WD Sport Utility 2WD Sport Utility Vehicle
Interior Dimensions
Front Hip Room (in)
61.3 58.3
Passenger Volume (ft³)
188.7 132.7
Third Shoulder Room (in)
63.7 -
Second Leg Room (in)
41.9 40.0
Front Head Room (in)
39.7 39.9
Second Hip Room (in)
60.1 58.3
Front Shoulder Room (in)
65.1 59.9
Passenger Capacity
7 5
Third Leg Room (in)
32.2 -
Second Head Room (in)
40.0 39.8
Third Hip Room (in)
48.8 -
Second Shoulder Room (in)
64.5 59.8
Front Leg Room (in)
41.8 42.2
Third Head Room (in)
35.9 -
Exterior Dimensions
Rear Door Opening Width (in)
NA - TBD -
Height, Overall (in)
77.8 71.5
Liftover Height (in)
- TBD - - TBD -
Track Width, Rear (in)
67.5 64.1
Wheelbase (in)
123.2 114.7
Rear Door Opening Height (in)
NA - TBD -
Width, Max w/o mirrors (in)
78.8 76.3
Track Width, Front (in)
67.5 64.0
Min Ground Clearance (in)
8.3 8.3
Length, Overall (in)
206.9 188.2
Cargo Area Dimensions
Cargo Volume to Seat 3 (ft³)
20.0 NA
Cargo Box Width @ Wheelhousings (in)
NA - TBD -
Cargo Area Length @ Floor to Seat 2 (in)
- TBD - - TBD -
Cargo Volume to Seat 2 (ft³)
56.7 29.4
Cargo Area Width @ Beltline (in)
NA - TBD -
Cargo Box (Area) Height (in)
- TBD - - TBD -
Cargo Area Length @ Floor to Seat 1 (in)
- TBD - - TBD -
Cargo Volume to Seat 1 (ft³)
97.1 72.4
Cargo Area Length @ Floor to Seat 3 (in)
- TBD - NA
Brakes
Rear Drum Diam x Width (in)
NA NA
Disc - Front (Yes or )
Yes Yes
Front Brake Rotor Diam x Thickness (in)
13.8 x 1.2 13.0 x 1.3
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)
12.6 x 1.02 13.0 x 0.45
Brake Type
Power Pwr
Fuel Tank
Fuel Tank Capacity, Approx (gal)
28.0 25.1
Steering
Lock to Lock Turns (Steering)
3.6 3.62
Turning Diameter - Wall to Wall (ft)
- TBD - - TBD -
Steering Ratio (:1), Overall
20 18.6
Turning Diameter - Curb to Curb (ft)
40.8 37.9
Steering Type
Pwr Rack & Pinion Pwr Rack & Pinion
Tires
Rear Tire Size
P275/60R20 P255/50R19
Rear Tire Order Code
NA NA
Front Tire Size
P275/60R20 P255/50R19
Spare Tire Size
P275/60R20 - TBD -
Front Tire Order Code
NA NA
Spare Tire Order Code
NA NA
Trailering
Dead Weight Hitch - Max Tongue Wt. (lbs)
500 460
Wt Distributing Hitch - Max Tongue Wt. (lbs)
NA NA
Dead Weight Hitch - Max Trailer Wt. (lbs)
5000 4600
Wt Distributing Hitch - Max Trailer Wt. (lbs)
NA NA
Weight Information
Base Curb Weight (lbs)
5705 4632
Wheels
Front Wheel Material
Aluminum Aluminum
Spare Wheel Material
Steel - TBD -
Front Wheel Size (in)
20 x 8 19 x 8.0
Spare Wheel Size (in)
20 x 8 - TBD -
Rear Wheel Material
Aluminum Aluminum
Rear Wheel Size (in)
20 x 8 19 x 8.0
Cooling System
Total Cooling System Capacity (qts)
12.3 10
Electrical
Cold Cranking Amps @ 0° F (Primary)
650 - TBD -
Maximum Alternator Capacity (amps)
130 - TBD -
Engine
Displacement
5.6L/339 3.5L/213
SAE Net Horsepower @ RPM
320 @ 5200 268 @ 6000
Engine Type
Gas V8 Gas V6
Fuel System
MPI - TBD -
SAE Net Torque @ RPM
393 @ 3400 258 @ 2400 - 5000
Engine Order Code
NA NA
Mileage
EPA Fuel Economy Est - Hwy (MPG)
18 21
EPA Fuel Economy Est - City (MPG)
12 16
Fuel Economy Est-Combined (MPG)
14 18
Transmission
Clutch Size (in)
NA NA
Third Gear Ratio (:1)
1.52 1.92
Trans Type
5 7
Drivetrain
Rear Wheel Drive Rear Wheel Drive
Fifth Gear Ratio (:1)
0.83 1.00
Trans Description Cont. Again
NA NA
Reverse Ratio (:1)
2.61 3.42/2.23
Second Gear Ratio (:1)
2.37 2.86
Trans Order Code
NA NA
Final Drive Axle Ratio (:1)
3.36 3.90
Fourth Gear Ratio (:1)
1.00 1.37
Trans Description Cont.
Automatic w/OD Automatic
Sixth Gear Ratio (:1)
NA 0.82
First Gear Ratio (:1)
3.83 4.38
Transfer Case Gear Ratio (:1), High
- - TBD -
Seventh Gear Ratio (:1)
- 0.73
Transfer Case Gear Ratio (:1), Low
- - TBD -
Summary
Vehicle Name
Infiniti QX56 Mercedes-Benz M-Class
Body Style
4 Door 4 Door
Suspension
Shock Absorber Diameter - Rear (mm)
- TBD - - TBD -
Suspension Type - Front
Independent Double Wishbone
Stabilizer Bar Diameter - Rear (in)
22.2 - TBD -
Suspension Type - Front (Cont.)
Double Wishbone NA
Shock Absorber Diameter - Front (mm)
- TBD - - TBD -
Stabilizer Bar Diameter - Front (in)
23 - TBD -
Suspension Type - Rear
Independent 4-Arm Multilink
Suspension Type - Rear (Cont.)
Double Wishbone NA
Emissions
EPA Greenhouse Gas Score
1 3

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