Car comparison

AUDI RS6 Avant (C7) · Facelift 2014 4.0 TFSI V8 performancevsMercedes-Benz CLS Shooting Brake (X218) · Facelift 2014 AMG CLS 63 V8

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

New comparison

AUDI RS6 Avant (C7) · Facelift 2014

4.0 TFSI V8 performance

605 hp3993 ccGasolineAWDAutomaticTwin-turboWagon / estate2015-2018
VS

Mercedes-Benz CLS Shooting Brake (X218) · Facelift 2014

AMG CLS 63 V8

557 hp5461 ccGasolineAWDAutomaticTwin-turboWagon / estate2014-2018

Comparison overview

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

Best choices

AUDI RS6 Avant (C7) Facelift 2014 4.0 TFSI V8 performance

  • Quickest 0-100 km/h
    3.7 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    605 hp
    451 kW
  • Highest torque
    750 Nm
    553 lb-ft
  • Lightest
    1,950 kg
    4,299 lb
  • Best power-to-weight
    310 hp/t
    231 kW/t
    3.2 kg/hp
  • Lowest combined fuel consumption
    9.6 L/100 km
    24.5 mpg US
    29.4 mpg UK
  • Lowest city consumption
    13.4 L/100 km
    17.6 mpg US
    21.1 mpg UK
  • Lowest highway consumption
    7.4 L/100 km
    31.8 mpg US
    38.2 mpg UK
  • Lowest CO2 emissions
    223 g/km
  • Best estimated range
    781 km
    485 mi
  • Best overall score
    86/100
  • Best performance score
    85/100
  • Best economy score
    81/100
  • Best practicality score
    87/100

Specification comparison

Specification comparison
ModelAUDIRS6 Avant (C7)Facelift 20144.0 TFSI V8 performanceMercedes-BenzCLS Shooting Brake (X218)Facelift 2014AMG CLS 63 V8
Power
605hp451kW
557hp415kW
Torque
750Nm553lb-ft
720Nm531lb-ft
Curb weight
1,950kg4,299lb
2,025kg4,464lb
Gross weight
2,580kg5,688lb
2,560kg5,644lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
34.6s99% target: 257 km/h / 160 mph
Calculated
34.6s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
3.7s
3.8s
0-200 km/h
11.1s
Calculated
11.3s
Calculated
0-60 mph
3.5s
Calculated
3.6s
Calculated
Fuel consumption
9.6L/100 km24.5mpg US29.4mpg UK
10.6L/100 km22.2mpg US26.6mpg UK
Fuel consumption city
13.4L/100 km17.6mpg US21.1mpg UK
14.4L/100 km16.3mpg US19.6mpg UK
Fuel consumption highway
7.4L/100 km31.8mpg US38.2mpg UK
8.4L/100 km28mpg US33.6mpg UK
Quarter mile
11.5s
Calculated
11.6s
Calculated
Power-to-weight
310hp/t231kW/t141hp/1000 lb
Calculated
275hp/t205kW/t125hp/1000 lb
Calculated
Torque-to-weight
385Nm/t257lb-ft/ton
Calculated
356Nm/t238lb-ft/ton
Calculated
Estimated range
781km485mi
Calculated
623km387mi
Calculated
Displacement
3,993cc244cu in
5,461cc333cu in
Length
4,979mm196in
4,953mm195in
Width
1,936mm76in
1,881mm74in
Height
1,461mm58in
1,419mm56in
Wheelbase
2,915mm115in
2,874mm113in
Front track
1,662mm65in
1,596mm63in
Rear track
1,663mm65in
1,629mm64in
Trunk volume
565L
590L
Max trunk volume
1,680L
1,550L
Doors
5
5
Seats
5
5
Fuel tank
75L
66L
CO2 emissions
223g/km
248g/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 RS6 Avant (C7) Facelift 2014 4.0 TFSI V8 performanceMercedes-Benz CLS Shooting Brake (X218) Facelift 2014 AMG CLS 63 V8PowerTorque
  • AUDI RS6 Avant (C7) Facelift 2014 4.0 TFSI V8 performance: Power / Torque
  • Mercedes-Benz CLS Shooting Brake (X218) Facelift 2014 AMG CLS 63 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIRS6 Avant (C7)Facelift 20144.0 TFSI V8 performance6,100-6,800 rpm2,500-5,500 rpm7,050 rpm
Mercedes-BenzCLS Shooting Brake (X218)Facelift 2014AMG CLS 63 V85,500 rpm1,750-5,250 rpm5,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIRS6 Avant (C7)Facelift 20144.0 TFSI V8 performanceMercedes-BenzCLS Shooting Brake (X218)Facelift 2014AMG CLS 63 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
3.5 s
3.6 s
0-100 km/h
0-62 mph
3.7 s
3.8 s
0-200 km/h
0-124 mph
11.1 s
11.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.1 s
2.1 s
330 ft
101 m
5.1 s
5.2 s
1/8 mile
201 m
7.6 s
7.7 s
1000 ft
305 m
9.7 s
9.8 s
1/4 mile
402 m
11.5 s
11.6 s
Trap speed
1/4 mile
402 m
203 km/h
126 mph
203 km/h
126 mph

Power comparison

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

Chart data table
VehicleValue
AUDIRS6 Avant (C7)Facelift 20144.0 TFSI V8 performance
605 hp
451 kW
Mercedes-BenzCLS Shooting Brake (X218)Facelift 2014AMG CLS 63 V8
557 hp
415 kW

AUDI RS6 Avant (C7) Facelift 2014 4.0 TFSI V8 performance has 48 hp more than Mercedes-Benz CLS Shooting Brake (X218) Facelift 2014 AMG CLS 63 V8.

The biggest power difference is between Mercedes-Benz CLS Shooting Brake (X218) Facelift 2014 AMG CLS 63 V8 and AUDI RS6 Avant (C7) Facelift 2014 4.0 TFSI V8 performance: 48 hp (36 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIRS6 Avant (C7)Facelift 20144.0 TFSI V8 performance
750 Nm
553 lb-ft
Mercedes-BenzCLS Shooting Brake (X218)Facelift 2014AMG CLS 63 V8
720 Nm
531 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIRS6 Avant (C7)Facelift 20144.0 TFSI V8 performance
1,950 kg
4,299 lb
Mercedes-BenzCLS Shooting Brake (X218)Facelift 2014AMG CLS 63 V8
2,025 kg
4,464 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
AUDIRS6 Avant (C7)Facelift 20144.0 TFSI V8 performance
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Mercedes-BenzCLS Shooting Brake (X218)Facelift 2014AMG CLS 63 V8
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
AUDIRS6 Avant (C7)Facelift 20144.0 TFSI V8 performance3.7 s
Mercedes-BenzCLS Shooting Brake (X218)Facelift 2014AMG CLS 63 V83.8 s

The biggest 0-100 km/h difference is between AUDI RS6 Avant (C7) Facelift 2014 4.0 TFSI V8 performance and Mercedes-Benz CLS Shooting Brake (X218) Facelift 2014 AMG CLS 63 V8: 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
AUDIRS6 Avant (C7)Facelift 20144.0 TFSI V8 performance
9.6 L/100 km
24.5 mpg US
29.4 mpg UK
Mercedes-BenzCLS Shooting Brake (X218)Facelift 2014AMG CLS 63 V8
10.6 L/100 km
22.2 mpg US
26.6 mpg UK

The biggest fuel consumption difference is between AUDI RS6 Avant (C7) Facelift 2014 4.0 TFSI V8 performance and Mercedes-Benz CLS Shooting Brake (X218) Facelift 2014 AMG CLS 63 V8: 1.0 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
AUDIRS6 Avant (C7)Facelift 20144.0 TFSI V8 performance
310 hp/t
231 kW/t
3.2 kg/hp
Mercedes-BenzCLS Shooting Brake (X218)Facelift 2014AMG CLS 63 V8
275 hp/t
205 kW/t
3.6 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIRS6 Avant (C7)Facelift 20144.0 TFSI V8 performance
781 km
485 mi
Mercedes-BenzCLS Shooting Brake (X218)Facelift 2014AMG CLS 63 V8
623 km
387 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIRS6 Avant (C7)Facelift 20144.0 TFSI V8 performance
605 hp
451 kW
3.7 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Mercedes-BenzCLS Shooting Brake (X218)Facelift 2014AMG CLS 63 V8
557 hp
415 kW
3.8 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 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
AUDIRS6 Avant (C7)Facelift 20144.0 TFSI V8 performance
Power
605 hp
451 kW
0-100 km/h3.7 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
4,979 mm
196.0 in
Height
1,461 mm
57.5 in
Mercedes-BenzCLS Shooting Brake (X218)Facelift 2014AMG CLS 63 V8
Power
557 hp
415 kW
0-100 km/h3.8 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
590 L
20.8 cu ft
Length
4,953 mm
195.0 in
Height
1,419 mm
55.9 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
AUDIRS6 Avant (C7)Facelift 20144.0 TFSI V8 performance
Power
605 hp
451 kW
0-100 km/h3.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
9.6 L/100 km
24.5 mpg US
29.4 mpg UK
Mercedes-BenzCLS Shooting Brake (X218)Facelift 2014AMG CLS 63 V8
Power
557 hp
415 kW
0-100 km/h3.8 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
10.6 L/100 km
22.2 mpg US
26.6 mpg UK

AUDI RS6 Avant (C7) Facelift 2014 4.0 TFSI V8 performance 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
AUDIRS6 Avant (C7)Facelift 20144.0 TFSI V8 performance
9.6 L/100 km
24.5 mpg US
29.4 mpg UK
3.7 s
Mercedes-BenzCLS Shooting Brake (X218)Facelift 2014AMG CLS 63 V8
10.6 L/100 km
22.2 mpg US
26.6 mpg UK
3.8 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
AUDIRS6 Avant (C7)Facelift 20144.0 TFSI V8 performance
310 hp/t
231 kW/t
3.2 kg/hp
9.6 L/100 km
24.5 mpg US
29.4 mpg UK
Mercedes-BenzCLS Shooting Brake (X218)Facelift 2014AMG CLS 63 V8
275 hp/t
205 kW/t
3.6 kg/hp
10.6 L/100 km
22.2 mpg US
26.6 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIRS6 Avant (C7)Facelift 20144.0 TFSI V8 performanceMercedes-BenzCLS Shooting Brake (X218)Facelift 2014AMG CLS 63 V8
Power
605 hp
451 kW
557 hp
415 kW
Torque
750 Nm
553 lb-ft
720 Nm
531 lb-ft
Acceleration
3.7 s
3.8 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,950 kg
4,299 lb
2,025 kg
4,464 lb
Fuel consumption
9.6 L/100 km
24.5 mpg US
29.4 mpg UK
10.6 L/100 km
22.2 mpg US
26.6 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
565 L
20.0 cu ft
Length
4,979 mm
196.0 in
Height
1,461 mm
57.5 in
Doors/seats
5 doors
5 seats
Trunk
590 L
20.8 cu ft
Length
4,953 mm
195.0 in
Height
1,419 mm
55.9 in
Range score
781 km
485 mi
623 km
387 mi
CO2 score
223 g/km
248 g/km
Trunk score
565 L
20.0 cu ft
590 L
20.8 cu ft
Power-to-weight score
310 hp/t
231 kW/t
3.2 kg/hp
275 hp/t
205 kW/t
3.6 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 RS6 Avant (C7) Facelift 2014 4.0 TFSI V8 performanceMercedes-Benz CLS Shooting Brake (X218) Facelift 2014 AMG CLS 63 V8
Consumption9.6 L/100 km24.5 mpg US29.4 mpg UK10.6 L/100 km22.2 mpg US26.6 mpg UK
Cost / 100 km16.80 LC100 km18.55 LC100 km
Cost / 100 mi27.04 LC100 mi29.85 LC100 mi
Annual fuel used1,440 L380 US gal317 UK gal1,590 L420 US gal350 UK gal
Annual fuel cost2,520 LC/year2,783 LC/year

Head-to-head comparisons

AUDI RS6 Avant (C7) Facelift 2014 4.0 TFSI V8 performance

  • Has 48 hp more
  • Has 30 Nm more
  • Is 75 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Uses 1.0 L/100 km less fuel
  • Has 35 hp/t better power-to-weight
  • Has 159 km (99 mi) more estimated range
  • Emits 25 g/km less CO2

Pros

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

Cons

  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI RS6 Avant (C7) 4.0 TFSI V8 performance
Mercedes-Benz CLS Shooting Brake (X218) AMG CLS 63 V8
Compare selected cars
2 vehicles selected

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