Car comparison

AUDI A6 allroad (4F/C6) 3.2 FSI V6vsMercedes-Benz R-class (W251) · Facelift 2010 R 350 CDI V6

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

AUDI A6 allroad (4F/C6)

3.2 FSI V6

256 hp3123 ccGasolineAWDAutomaticNaturally aspiratedWagon / estate2006-2008
VS

Mercedes-Benz R-class (W251) · Facelift 2010

R 350 CDI V6

265 hp2987 ccDieselAWDAutomaticTurbochargedWagon / estate2010-2014

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

Best choices

Mercedes-Benz R-class (W251) Facelift 2010 R 350 CDI V6

  • Quickest 0-100 km/h
    7.6 s
  • Most powerful
    265 hp
    198 kW
  • Highest torque
    620 Nm
    457 lb-ft
  • Lowest combined fuel consumption
    8.5 L/100 km
    27.7 mpg US
    33.2 mpg UK
  • Lowest city consumption
    11.0 L/100 km
    21.4 mpg US
    25.7 mpg UK
  • Lowest highway consumption
    7.0 L/100 km
    33.6 mpg US
    40.4 mpg UK
  • Best estimated range
    941 km
    585 mi
  • Best overall score
    67/100
  • Best performance score
    57/100
  • Best economy score
    84/100

AUDI A6 allroad (4F/C6) 3.2 FSI V6

  • Fastest top speed
    240 km/h
    149 mph
  • Lightest
    1,800 kg
    3,968 lb
  • Best power-to-weight
    142 hp/t
    106 kW/t
    7.0 kg/hp
  • Largest trunk
    565 L
  • Best practicality score
    87/100

Specification comparison

Specification comparison
ModelAUDIA6 allroad (4F/C6)3.2 FSI V6Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
Power
256hp191kW
265hp198kW
Torque
330Nm243lb-ft
620Nm457lb-ft
Curb weight
1,800kg3,968lb
2,175kg4,795lb
Gross weight
2,430kg5,357lb
2,880kg6,349lb
Top speed
240 km/h
149 mph
235 km/h
146 mph
To 99% top speed
82.8s99% target: 238 km/h / 148 mph
Calculated
87.8s99% target: 233 km/h / 145 mph
Calculated
0-100 km/h
7.7s
7.6s
0-200 km/h
29.1s
Calculated
31.6s
Calculated
0-60 mph
7.3s
Calculated
7.2s
Calculated
Fuel consumption
11L/100 km21.4mpg US25.7mpg UK
8.5L/100 km27.7mpg US33.2mpg UK
Fuel consumption city
15.6L/100 km15.1mpg US18.1mpg UK
11L/100 km21.4mpg US25.7mpg UK
Fuel consumption highway
8.4L/100 km28mpg US33.6mpg UK
7L/100 km33.6mpg US40.4mpg UK
Quarter mile
15.5s
Calculated
15.5s
Calculated
Power-to-weight
142hp/t106kW/t65hp/1000 lb
Calculated
122hp/t91kW/t55hp/1000 lb
Calculated
Torque-to-weight
183Nm/t123lb-ft/ton
Calculated
285Nm/t191lb-ft/ton
Calculated
Estimated range
727km452mi
Calculated
941km585mi
Calculated
Displacement
3,123cc191cu in
2,987cc182cu in
Length
4,934mm194in
4,922mm194in
Width
1,862mm73in
1,922mm76in
Height
1,519mm60in
1,674mm66in
Wheelbase
2,833mm112in
2,980mm117in
Front track
1,596mm63in
1,661mm65in
Rear track
1,587mm62in
1,651mm65in
Trunk volume
565L
550L
Max trunk volume
1,660L
1,950L
Doors
5
5
Seats
5
5
Fuel tank
80L
80L
CO2 emissions-
223g/km

Performance charts

Use the estimates as comparison hints and verify exact figures before making decisions.

Dyno simulation

Estimated stock-style power and torque curves by engine speed.

AUDI A6 allroad (4F/C6) 3.2 FSI V6Mercedes-Benz R-class (W251) Facelift 2010 R 350 CDI V6PowerTorque
  • AUDI A6 allroad (4F/C6) 3.2 FSI V6: Power / Torque
  • Mercedes-Benz R-class (W251) Facelift 2010 R 350 CDI V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIA6 allroad (4F/C6)3.2 FSI V66,500 rpm3,250 rpm6,750 rpm
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V63,800 rpm1,600-2,400 rpm4,050 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIA6 allroad (4F/C6)3.2 FSI V6Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
Acceleration checkpoints
0-60 mph
0-97 km/h
7.3 s
7.2 s
0-100 km/h
0-62 mph
7.7 s
7.6 s
0-200 km/h
0-124 mph
29.1 s
31.6 s
Top speed
240 km/h
149 mph
235 km/h
146 mph
Drag race simulation
60 ft
18 m
2.7 s
2.6 s
330 ft
101 m
6.9 s
6.8 s
1/8 mile
201 m
10.3 s
10.1 s
1000 ft
305 m
13.1 s
13.0 s
1/4 mile
402 m
15.5 s
15.5 s
Trap speed
1/4 mile
402 m
153 km/h
95 mph
151 km/h
94 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
VehicleValue
AUDIA6 allroad (4F/C6)3.2 FSI V6
256 hp
191 kW
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
265 hp
198 kW

Mercedes-Benz R-class (W251) Facelift 2010 R 350 CDI V6 has 9 hp more than AUDI A6 allroad (4F/C6) 3.2 FSI V6.

The biggest power difference is between AUDI A6 allroad (4F/C6) 3.2 FSI V6 and Mercedes-Benz R-class (W251) Facelift 2010 R 350 CDI V6: 9 hp (7 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
VehicleValue
AUDIA6 allroad (4F/C6)3.2 FSI V6
330 Nm
243 lb-ft
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
620 Nm
457 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
VehicleValue
AUDIA6 allroad (4F/C6)3.2 FSI V6
1,800 kg
3,968 lb
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
2,175 kg
4,795 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
AUDIA6 allroad (4F/C6)3.2 FSI V6
240 km/h
149 mph
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
235 km/h
146 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
AUDIA6 allroad (4F/C6)3.2 FSI V67.7 s
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V67.6 s

The biggest 0-100 km/h difference is between Mercedes-Benz R-class (W251) Facelift 2010 R 350 CDI V6 and AUDI A6 allroad (4F/C6) 3.2 FSI V6: 0.1 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
AUDIA6 allroad (4F/C6)3.2 FSI V6
11.0 L/100 km
21.4 mpg US
25.7 mpg UK
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
8.5 L/100 km
27.7 mpg US
33.2 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz R-class (W251) Facelift 2010 R 350 CDI V6 and AUDI A6 allroad (4F/C6) 3.2 FSI V6: 2.5 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
AUDIA6 allroad (4F/C6)3.2 FSI V6
142 hp/t
106 kW/t
7.0 kg/hp
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
122 hp/t
91 kW/t
8.2 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
VehicleValue
AUDIA6 allroad (4F/C6)3.2 FSI V6
727 km
452 mi
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
941 km
585 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIA6 allroad (4F/C6)3.2 FSI V6
256 hp
191 kW
7.7 s
240 km/h
149 mph
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
265 hp
198 kW
7.6 s
235 km/h
146 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Chart data table
VehiclePerformance scorePracticality score
AUDIA6 allroad (4F/C6)3.2 FSI V6
Power
256 hp
191 kW
0-100 km/h7.7 s
Top speed
240 km/h
149 mph
Doors/seats
5 doors
5 seats
Trunk
565 L
20.0 cu ft
Length
4,934 mm
194.3 in
Height
1,519 mm
59.8 in
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
Power
265 hp
198 kW
0-100 km/h7.6 s
Top speed
235 km/h
146 mph
Doors/seats
5 doors
5 seats
Trunk
550 L
19.4 cu ft
Length
4,922 mm
193.8 in
Height
1,674 mm
65.9 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
AUDIA6 allroad (4F/C6)3.2 FSI V6
Power
256 hp
191 kW
0-100 km/h7.7 s
Top speed
240 km/h
149 mph
11.0 L/100 km
21.4 mpg US
25.7 mpg UK
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
Power
265 hp
198 kW
0-100 km/h7.6 s
Top speed
235 km/h
146 mph
8.5 L/100 km
27.7 mpg US
33.2 mpg UK

Mercedes-Benz R-class (W251) Facelift 2010 R 350 CDI V6 is closest to the top-right balance target for performance and fuel economy.

Acceleration vs fuel consumption

Cars closer to the lower-left corner offer a better mix of quick acceleration and low fuel consumption.

Acceleration vs fuel consumption data table
VehicleFuel consumption, L/100 km0-100 km/h, s
AUDIA6 allroad (4F/C6)3.2 FSI V6
11.0 L/100 km
21.4 mpg US
25.7 mpg UK
7.7 s
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
8.5 L/100 km
27.7 mpg US
33.2 mpg UK
7.6 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
AUDIA6 allroad (4F/C6)3.2 FSI V6
142 hp/t
106 kW/t
7.0 kg/hp
11.0 L/100 km
21.4 mpg US
25.7 mpg UK
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
122 hp/t
91 kW/t
8.2 kg/hp
8.5 L/100 km
27.7 mpg US
33.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIA6 allroad (4F/C6)3.2 FSI V6Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
Power
256 hp
191 kW
265 hp
198 kW
Torque
330 Nm
243 lb-ft
620 Nm
457 lb-ft
Acceleration
7.7 s
7.6 s
Top speed
240 km/h
149 mph
235 km/h
146 mph
Lightness
1,800 kg
3,968 lb
2,175 kg
4,795 lb
Fuel consumption
11.0 L/100 km
21.4 mpg US
25.7 mpg UK
8.5 L/100 km
27.7 mpg US
33.2 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
565 L
20.0 cu ft
Length
4,934 mm
194.3 in
Height
1,519 mm
59.8 in
Doors/seats
5 doors
5 seats
Trunk
550 L
19.4 cu ft
Length
4,922 mm
193.8 in
Height
1,674 mm
65.9 in
Range score
727 km
452 mi
941 km
585 mi
CO2 score
-
223 g/km
Trunk score
565 L
20.0 cu ft
550 L
19.4 cu ft
Power-to-weight score
142 hp/t
106 kW/t
7.0 kg/hp
122 hp/t
91 kW/t
8.2 kg/hp
Overall
Fixed score
Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.

LC = Local Currency

Fuel cost and annual usage
VehicleAUDI A6 allroad (4F/C6) 3.2 FSI V6Mercedes-Benz R-class (W251) Facelift 2010 R 350 CDI V6
Consumption11 L/100 km21.4 mpg US25.7 mpg UK8.5 L/100 km27.7 mpg US33.2 mpg UK
Cost / 100 km19.25 LC100 km14.88 LC100 km
Cost / 100 mi30.98 LC100 mi23.94 LC100 mi
Annual fuel used1,650 L436 US gal363 UK gal1,275 L337 US gal280 UK gal
Annual fuel cost2,888 LC/year2,231 LC/year

Head-to-head comparisons

AUDI A6 allroad (4F/C6) 3.2 FSI V6

  • Is 375 kg lighter
  • Has 5 km/h (3 mph) higher top speed
  • Has 20 hp/t better power-to-weight
  • Has 15 L more trunk volume

Pros

  • Highest top speed
  • Lightest
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption

Mercedes-Benz R-class (W251) Facelift 2010 R 350 CDI V6

  • Has 9 hp more
  • Has 290 Nm more
  • Is 0.1 s quicker from 0-100 km/h
  • Uses 2.5 L/100 km less fuel
  • Has 214 km (133 mi) more estimated range

Pros

  • Quickest 0-100 km/h in this comparison
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Heaviest
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI A6 allroad (4F/C6) 3.2 FSI V6
Mercedes-Benz R-class (W251) R 350 CDI V6
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2 vehicles selected

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AUDI A6 allroad (4F/C6) 3.2 FSI V6 vs Mercedes-Benz R-class (W251) · Facelift 2010 R 350 CDI V6 - car comparison - FastVsFaster