Car comparison

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

272 hp3498 ccGasolineAWDAutomaticNaturally aspiratedWagon / estate2010-2012

Comparison overview

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

Best choices

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

  • Quickest 0-100 km/h
    7.7 s
  • 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
  • Lowest combined fuel consumption
    11.0 L/100 km
    21.4 mpg US
    25.7 mpg UK
  • Lowest city consumption
    15.6 L/100 km
    15.1 mpg US
    18.1 mpg UK
  • Lowest highway consumption
    8.4 L/100 km
    28.0 mpg US
    33.6 mpg UK
  • Best estimated range
    727 km
    452 mi
  • Largest trunk
    565 L
  • Best overall score
    64/100
  • Best performance score
    53/100
  • Best economy score
    77/100
  • Best practicality score
    87/100

Specification comparison

Specification comparison
ModelAUDIA6 allroad (4F/C6)3.2 FSI V6Mercedes-BenzR-class (W251)Facelift 2010R 350 V6
Power
256hp191kW
272hp203kW
Torque
330Nm243lb-ft
350Nm258lb-ft
Curb weight
1,800kg3,968lb
2,105kg4,641lb
Gross weight
2,430kg5,357lb
2,840kg6,261lb
Top speed
240 km/h
149 mph
230 km/h
143 mph
To 99% top speed
82.8s99% target: 238 km/h / 148 mph
Calculated
90.8s99% target: 228 km/h / 141 mph
Calculated
0-100 km/h
7.7s
8.3s
0-200 km/h
29.1s
Calculated
35.7s
Calculated
0-60 mph
7.3s
Calculated
7.9s
Calculated
Fuel consumption
11L/100 km21.4mpg US25.7mpg UK
11.9L/100 km19.8mpg US23.7mpg UK
Fuel consumption city
15.6L/100 km15.1mpg US18.1mpg UK
16.1L/100 km14.6mpg US17.5mpg UK
Fuel consumption highway
8.4L/100 km28mpg US33.6mpg UK
9.5L/100 km24.8mpg US29.7mpg UK
Quarter mile
15.5s
Calculated
16.0s
Calculated
Power-to-weight
142hp/t106kW/t65hp/1000 lb
Calculated
129hp/t96kW/t59hp/1000 lb
Calculated
Torque-to-weight
183Nm/t123lb-ft/ton
Calculated
166Nm/t111lb-ft/ton
Calculated
Estimated range
727km452mi
Calculated
672km418mi
Calculated
Displacement
3,123cc191cu in
3,498cc213cu 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-
279g/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 V6PowerTorque
  • AUDI A6 allroad (4F/C6) 3.2 FSI V6: Power / Torque
  • Mercedes-Benz R-class (W251) Facelift 2010 R 350 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 V66,000 rpm2,400-5,000 rpm6,250 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 V6
Acceleration checkpoints
0-60 mph
0-97 km/h
7.3 s
7.9 s
0-100 km/h
0-62 mph
7.7 s
8.3 s
0-200 km/h
0-124 mph
29.1 s
35.7 s
Top speed
240 km/h
149 mph
230 km/h
143 mph
Drag race simulation
60 ft
18 m
2.7 s
2.7 s
330 ft
101 m
6.9 s
7.0 s
1/8 mile
201 m
10.3 s
10.5 s
1000 ft
305 m
13.1 s
13.5 s
1/4 mile
402 m
15.5 s
16.0 s
Trap speed
1/4 mile
402 m
153 km/h
95 mph
146 km/h
91 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 V6
272 hp
203 kW

Mercedes-Benz R-class (W251) Facelift 2010 R 350 V6 has 16 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 V6: 16 hp (12 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 V6
350 Nm
258 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 V6
2,105 kg
4,641 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 V6
230 km/h
143 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 V68.3 s

Although Mercedes-Benz R-class (W251) Facelift 2010 R 350 V6 has more power, AUDI A6 allroad (4F/C6) 3.2 FSI V6 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between AUDI A6 allroad (4F/C6) 3.2 FSI V6 and Mercedes-Benz R-class (W251) Facelift 2010 R 350 V6: 0.6 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 V6
11.9 L/100 km
19.8 mpg US
23.7 mpg UK

The biggest fuel consumption difference is between AUDI A6 allroad (4F/C6) 3.2 FSI V6 and Mercedes-Benz R-class (W251) Facelift 2010 R 350 V6: 0.9 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 V6
129 hp/t
96 kW/t
7.7 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 V6
672 km
418 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 V6
272 hp
203 kW
8.3 s
230 km/h
143 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 V6
Power
272 hp
203 kW
0-100 km/h8.3 s
Top speed
230 km/h
143 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 V6
Power
272 hp
203 kW
0-100 km/h8.3 s
Top speed
230 km/h
143 mph
11.9 L/100 km
19.8 mpg US
23.7 mpg UK

AUDI A6 allroad (4F/C6) 3.2 FSI 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 V6
11.9 L/100 km
19.8 mpg US
23.7 mpg UK
8.3 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 V6
129 hp/t
96 kW/t
7.7 kg/hp
11.9 L/100 km
19.8 mpg US
23.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIA6 allroad (4F/C6)3.2 FSI V6Mercedes-BenzR-class (W251)Facelift 2010R 350 V6
Power
256 hp
191 kW
272 hp
203 kW
Torque
330 Nm
243 lb-ft
350 Nm
258 lb-ft
Acceleration
7.7 s
8.3 s
Top speed
240 km/h
149 mph
230 km/h
143 mph
Lightness
1,800 kg
3,968 lb
2,105 kg
4,641 lb
Fuel consumption
11.0 L/100 km
21.4 mpg US
25.7 mpg UK
11.9 L/100 km
19.8 mpg US
23.7 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
672 km
418 mi
CO2 score
-
279 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
129 hp/t
96 kW/t
7.7 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 V6
Consumption11 L/100 km21.4 mpg US25.7 mpg UK11.9 L/100 km19.8 mpg US23.7 mpg UK
Cost / 100 km19.25 LC100 km20.83 LC100 km
Cost / 100 mi30.98 LC100 mi33.51 LC100 mi
Annual fuel used1,650 L436 US gal363 UK gal1,785 L472 US gal393 UK gal
Annual fuel cost2,888 LC/year3,124 LC/year

Head-to-head comparisons

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

  • Is 305 kg lighter
  • Is 0.6 s quicker from 0-100 km/h
  • Has 10 km/h (6 mph) higher top speed
  • Uses 0.9 L/100 km less fuel
  • Has 13 hp/t better power-to-weight
  • Has 55 km (34 mi) more estimated range
  • Has 15 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range
  • Largest trunk

Cons

  • Lowest power

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 V6
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2 vehicles selected

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