Car comparison

AUDI A6 Avant (4G/C7) · Facelift 2014 2.0 TFSIvsMercedes-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 Avant (4G/C7) · Facelift 2014

2.0 TFSI

252 hp1984 ccGasolineFWDAutomaticTurbochargedWagon / estate2014-2016
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

AUDI A6 Avant (4G/C7) Facelift 2014 2.0 TFSI

  • Quickest 0-100 km/h
    6.9 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,660 kg
    3,660 lb
  • Best power-to-weight
    152 hp/t
    113 kW/t
    6.6 kg/hp
  • Lowest combined fuel consumption
    6.2 L/100 km
    37.9 mpg US
    45.6 mpg UK
  • Lowest city consumption
    7.5 L/100 km
    31.4 mpg US
    37.7 mpg UK
  • Lowest highway consumption
    5.4 L/100 km
    43.6 mpg US
    52.3 mpg UK
  • Lowest CO2 emissions
    146 g/km
  • Best estimated range
    1,048 km
    651 mi
  • Largest trunk
    565 L
  • Best overall score
    67/100
  • Best performance score
    58/100
  • Best economy score
    90/100
  • Best practicality score
    87/100

Specification comparison

Specification comparison
ModelAUDIA6 Avant (4G/C7)Facelift 20142.0 TFSIMercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
Power
252hp188kW
265hp198kW
Torque
370Nm273lb-ft
620Nm457lb-ft
Curb weight
1,660kg3,660lb
2,175kg4,795lb
Gross weight
2,290kg5,049lb
2,880kg6,349lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
235 km/h
146 mph
To 99% top speed
76.6s99% target: 257 km/h / 160 mph
Calculated
87.8s99% target: 233 km/h / 145 mph
Calculated
0-100 km/h
6.9s
7.6s
0-200 km/h
22.5s
Calculated
31.6s
Calculated
0-60 mph
6.6s
Calculated
7.2s
Calculated
Fuel consumption
6.2L/100 km37.9mpg US45.6mpg UK
8.5L/100 km27.7mpg US33.2mpg UK
Fuel consumption city
7.5L/100 km31.4mpg US37.7mpg UK
11L/100 km21.4mpg US25.7mpg UK
Fuel consumption highway
5.4L/100 km43.6mpg US52.3mpg UK
7L/100 km33.6mpg US40.4mpg UK
Quarter mile
14.8s
Calculated
15.5s
Calculated
Power-to-weight
152hp/t113kW/t69hp/1000 lb
Calculated
122hp/t91kW/t55hp/1000 lb
Calculated
Torque-to-weight
223Nm/t149lb-ft/ton
Calculated
285Nm/t191lb-ft/ton
Calculated
Estimated range
1,048km651mi
Calculated
941km585mi
Calculated
Displacement
1,984cc121cu in
2,987cc182cu in
Length
4,943mm195in
4,922mm194in
Width
1,874mm74in
1,922mm76in
Height
1,461mm58in
1,674mm66in
Wheelbase
2,912mm115in
2,980mm117in
Front track
1,627mm64in
1,661mm65in
Rear track
1,618mm64in
1,651mm65in
Trunk volume
565L
550L
Max trunk volume
1,680L
1,950L
Doors
5
5
Seats
5
5
Fuel tank
65L
80L
CO2 emissions
146g/km
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 Avant (4G/C7) Facelift 2014 2.0 TFSIMercedes-Benz R-class (W251) Facelift 2010 R 350 CDI V6PowerTorque
  • AUDI A6 Avant (4G/C7) Facelift 2014 2.0 TFSI: 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 Avant (4G/C7)Facelift 20142.0 TFSI5,000-5,900 rpm1,600-4,700 rpm6,150 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 Avant (4G/C7)Facelift 20142.0 TFSIMercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
Acceleration checkpoints
0-60 mph
0-97 km/h
6.6 s
7.2 s
0-100 km/h
0-62 mph
6.9 s
7.6 s
0-200 km/h
0-124 mph
22.5 s
31.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
235 km/h
146 mph
Drag race simulation
60 ft
18 m
2.6 s
2.6 s
330 ft
101 m
6.7 s
6.8 s
1/8 mile
201 m
9.9 s
10.1 s
1000 ft
305 m
12.6 s
13.0 s
1/4 mile
402 m
14.8 s
15.5 s
Trap speed
1/4 mile
402 m
163 km/h
102 mph
151 km/h
94 mph

Power comparison

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

Chart data table
VehicleValue
AUDIA6 Avant (4G/C7)Facelift 20142.0 TFSI
252 hp
188 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 13 hp more than AUDI A6 Avant (4G/C7) Facelift 2014 2.0 TFSI.

The biggest power difference is between AUDI A6 Avant (4G/C7) Facelift 2014 2.0 TFSI and Mercedes-Benz R-class (W251) Facelift 2010 R 350 CDI V6: 13 hp (10 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIA6 Avant (4G/C7)Facelift 20142.0 TFSI
370 Nm
273 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 Avant (4G/C7)Facelift 20142.0 TFSI
1,660 kg
3,660 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 Avant (4G/C7)Facelift 20142.0 TFSI
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 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 Avant (4G/C7)Facelift 20142.0 TFSI6.9 s
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V67.6 s

Although Mercedes-Benz R-class (W251) Facelift 2010 R 350 CDI V6 has more power, AUDI A6 Avant (4G/C7) Facelift 2014 2.0 TFSI is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between AUDI A6 Avant (4G/C7) Facelift 2014 2.0 TFSI and Mercedes-Benz R-class (W251) Facelift 2010 R 350 CDI V6: 0.7 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 Avant (4G/C7)Facelift 20142.0 TFSI
6.2 L/100 km
37.9 mpg US
45.6 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 AUDI A6 Avant (4G/C7) Facelift 2014 2.0 TFSI and Mercedes-Benz R-class (W251) Facelift 2010 R 350 CDI V6: 2.3 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 Avant (4G/C7)Facelift 20142.0 TFSI
152 hp/t
113 kW/t
6.6 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 Avant (4G/C7)Facelift 20142.0 TFSI
1,048 km
651 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 Avant (4G/C7)Facelift 20142.0 TFSI
252 hp
188 kW
6.9 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 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 Avant (4G/C7)Facelift 20142.0 TFSI
Power
252 hp
188 kW
0-100 km/h6.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
565 L
20.0 cu ft
Length
4,943 mm
194.6 in
Height
1,461 mm
57.5 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 Avant (4G/C7)Facelift 20142.0 TFSI
Power
252 hp
188 kW
0-100 km/h6.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.2 L/100 km
37.9 mpg US
45.6 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

AUDI A6 Avant (4G/C7) Facelift 2014 2.0 TFSI 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 Avant (4G/C7)Facelift 20142.0 TFSI
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
6.9 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 Avant (4G/C7)Facelift 20142.0 TFSI
152 hp/t
113 kW/t
6.6 kg/hp
6.2 L/100 km
37.9 mpg US
45.6 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 Avant (4G/C7)Facelift 20142.0 TFSIMercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6
Power
252 hp
188 kW
265 hp
198 kW
Torque
370 Nm
273 lb-ft
620 Nm
457 lb-ft
Acceleration
6.9 s
7.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
235 km/h
146 mph
Lightness
1,660 kg
3,660 lb
2,175 kg
4,795 lb
Fuel consumption
6.2 L/100 km
37.9 mpg US
45.6 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
4,943 mm
194.6 in
Height
1,461 mm
57.5 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
1,048 km
651 mi
941 km
585 mi
CO2 score
146 g/km
223 g/km
Trunk score
565 L
20.0 cu ft
550 L
19.4 cu ft
Power-to-weight score
152 hp/t
113 kW/t
6.6 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 Avant (4G/C7) Facelift 2014 2.0 TFSIMercedes-Benz R-class (W251) Facelift 2010 R 350 CDI V6
Consumption6.2 L/100 km37.9 mpg US45.6 mpg UK8.5 L/100 km27.7 mpg US33.2 mpg UK
Cost / 100 km10.85 LC100 km14.88 LC100 km
Cost / 100 mi17.46 LC100 mi23.94 LC100 mi
Annual fuel used930 L246 US gal205 UK gal1,275 L337 US gal280 UK gal
Annual fuel cost1,628 LC/year2,231 LC/year

Head-to-head comparisons

AUDI A6 Avant (4G/C7) Facelift 2014 2.0 TFSI

  • Is 515 kg lighter
  • Is 0.7 s quicker from 0-100 km/h
  • Has 25 km/h (16 mph) higher top speed
  • Uses 2.3 L/100 km less fuel
  • Has 30 hp/t better power-to-weight
  • Has 107 km (67 mi) more estimated range
  • Has 15 L more trunk volume
  • Emits 77 g/km less CO2

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 Avant (4G/C7) 2.0 TFSI
Mercedes-Benz R-class (W251) R 350 CDI V6
Compare selected cars
2 vehicles selected

Popular comparisons

2.0 TFSI
2.0 TFSI
VS
AUDIA6 Avant (4G/C7)Facelift 20142.0 TFSIvsAUDIA6 Avant (4G/C7)Facelift 20162.0 TFSI
R 350 CDI V6
R 500 V8
VS
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6vsMercedes-BenzR-class (W251)R 500 V8
2.0 TFSI
3.0 TDI V6 clean diesel
VS
AUDIA6 Avant (4G/C7)Facelift 20142.0 TFSIvsAUDIA6 Avant (4G/C7)3.0 TDI V6 clean diesel
R 350 CDI V6
CLS 350 BlueTEC V6
VS
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6vsMercedes-BenzCLS Shooting Brake (X218)Facelift 2014CLS 350 BlueTEC V6
2.0 TFSI
45 TFSI
VS
AUDIA6 Avant (4G/C7)Facelift 20142.0 TFSIvsAUDIA6 Avant (C8)45 TFSI
R 350 CDI V6
2.0 T5
VS
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6vsVolvoV70 III2.0 T5
2.0 TFSI
45 TDI V6
VS
AUDIA6 Avant (4G/C7)Facelift 20142.0 TFSIvsAUDIA6 allroad (C8)45 TDI V6
2.0 TFSI
3.2 FSI V6
VS
AUDIA6 Avant (4G/C7)Facelift 20142.0 TFSIvsAUDIA6 allroad (4F/C6)3.2 FSI V6
R 350 CDI V6
3.2 JTS V6
VS
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6vsAlfa Romeo159 Sportwagon3.2 JTS V6
2.0 TFSI
3.2 FSI V6
VS
AUDIA6 Avant (4G/C7)Facelift 20142.0 TFSIvsAUDIA6 Avant (4F/C6)3.2 FSI V6
R 350 CDI V6
2.0 TSI
VS
Mercedes-BenzR-class (W251)Facelift 2010R 350 CDI V6vsVolkswagenPassat Alltrack (B7)2.0 TSI
2.0 TFSI
3.0 TFSI V6
VS
AUDIA6 Avant (4G/C7)Facelift 20142.0 TFSIvsAUDIA6 allroad (4F/C6)Facelift 20083.0 TFSI V6
AUDI A6 Avant (4G/C7) · Facelift 2014 2.0 TFSI vs Mercedes-Benz R-class (W251) · Facelift 2010 R 350 CDI V6 - car comparison - FastVsFaster