Car comparison

Mercedes-Benz C-class Coupe (C205) · Facelift 2018 AMG C 43 V6vsMercedes-Benz GLC Coupe (C254) GLC 450d

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

New comparison

Mercedes-Benz C-class Coupe (C205) · Facelift 2018

AMG C 43 V6

390 hp2996 ccGasolineAWDAutomaticTwin-turboCoupe2018-2023
VS

Mercedes-Benz GLC Coupe (C254)

GLC 450d

367 hp2989 ccDieselAWDAutomaticTwin-turboCoupe2023-present

Comparison overview

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

Best choices

Mercedes-Benz GLC Coupe (C254) GLC 450d

  • Highest torque
    750 Nm
    553 lb-ft
  • Lowest combined fuel consumption
    6.9 L/100 km
    34.1 mpg US
    40.9 mpg UK
  • Best estimated range
    899 km
    558 mi
  • Largest trunk
    545 L
  • Best overall score
    75/100
  • Best economy score
    88/100
  • Best practicality score
    72/100

Specification comparison

Specification comparison
ModelMercedes-BenzC-class Coupe (C205)Facelift 2018AMG C 43 V6Mercedes-BenzGLC Coupe (C254)GLC 450d
Power
390hp291kW
367hp274kW
Torque
520Nm384lb-ft
750Nm553lb-ft
Curb weight
1,660kg3,660lb
2,025kg4,464lb
Gross weight
2,185kg4,817lb
2,620kg5,776lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
59.6s99% target: 262 km/h / 163 mph
Calculated
75.9s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.7s
4.7s
0-200 km/h
15.8s
Calculated
18.4s
Calculated
0-60 mph
4.5s
Calculated
4.5s
Calculated
Fuel consumption
9.5L/100 km24.8mpg US29.7mpg UK
6.9L/100 km34.1mpg US40.9mpg UK
Fuel consumption city
12.7L/100 km18.5mpg US22.2mpg UK
-
Fuel consumption highway
7.7L/100 km30.5mpg US36.7mpg UK
-
Quarter mile
12.8s
Calculated
12.9s
Calculated
Power-to-weight
235hp/t175kW/t107hp/1000 lb
Calculated
181hp/t135kW/t82hp/1000 lb
Calculated
Torque-to-weight
313Nm/t210lb-ft/ton
Calculated
370Nm/t248lb-ft/ton
Calculated
Estimated range
695km432mi
Calculated
899km558mi
Calculated
Displacement
2,996cc183cu in
2,989cc182cu in
Length
4,693mm185in
4,764mm188in
Width
1,810mm71in
1,890mm74in
Height
1,402mm55in
1,605mm63in
Wheelbase
2,840mm112in
2,888mm114in
Front track
1,602mm63in
1,627mm64in
Rear track
1,558mm61in
1,640mm65in
Ground clearance
90mm4in
193mm8in
Trunk volume
400L
545L
Max trunk volume-
1,490L
Doors
2
5
Seats
4
5
Fuel tank
66L
62L
CO2 emissions
217g/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.

Mercedes-Benz C-class Coupe (C205) Facelift 2018 AMG C 43 V6Mercedes-Benz GLC Coupe (C254) GLC 450dPowerTorque
  • Mercedes-Benz C-class Coupe (C205) Facelift 2018 AMG C 43 V6: Power / Torque
  • Mercedes-Benz GLC Coupe (C254) GLC 450d: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzC-class Coupe (C205)Facelift 2018AMG C 43 V66,100 rpm2,500-5,000 rpm6,350 rpm
Mercedes-BenzGLC Coupe (C254)GLC 450d4,000 rpm1,350-2,800 rpm4,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzC-class Coupe (C205)Facelift 2018AMG C 43 V6Mercedes-BenzGLC Coupe (C254)GLC 450d
Acceleration checkpoints
0-60 mph
0-97 km/h
4.5 s
4.5 s
0-100 km/h
0-62 mph
4.7 s
4.7 s
0-200 km/h
0-124 mph
15.8 s
18.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Drag race simulation
60 ft
18 m
2.2 s
2.0 s
330 ft
101 m
5.6 s
5.5 s
1/8 mile
201 m
8.4 s
8.4 s
1000 ft
305 m
10.8 s
10.9 s
1/4 mile
402 m
12.8 s
12.9 s
Trap speed
1/4 mile
402 m
182 km/h
113 mph
174 km/h
108 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzC-class Coupe (C205)Facelift 2018AMG C 43 V6
390 hp
291 kW
Mercedes-BenzGLC Coupe (C254)GLC 450d
367 hp
274 kW

Mercedes-Benz C-class Coupe (C205) Facelift 2018 AMG C 43 V6 has 23 hp more than Mercedes-Benz GLC Coupe (C254) GLC 450d.

The biggest power difference is between Mercedes-Benz GLC Coupe (C254) GLC 450d and Mercedes-Benz C-class Coupe (C205) Facelift 2018 AMG C 43 V6: 23 hp (17 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzC-class Coupe (C205)Facelift 2018AMG C 43 V6
520 Nm
384 lb-ft
Mercedes-BenzGLC Coupe (C254)GLC 450d
750 Nm
553 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Mercedes-BenzC-class Coupe (C205)Facelift 2018AMG C 43 V6
1,660 kg
3,660 lb
Mercedes-BenzGLC Coupe (C254)GLC 450d
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
Mercedes-BenzC-class Coupe (C205)Facelift 2018AMG C 43 V6
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Mercedes-BenzGLC Coupe (C254)GLC 450d
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
Mercedes-BenzC-class Coupe (C205)Facelift 2018AMG C 43 V64.7 s
Mercedes-BenzGLC Coupe (C254)GLC 450d4.7 s

Fuel consumption comparison

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

Chart data table
VehicleValue
Mercedes-BenzC-class Coupe (C205)Facelift 2018AMG C 43 V6
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
Mercedes-BenzGLC Coupe (C254)GLC 450d
6.9 L/100 km
34.1 mpg US
40.9 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz GLC Coupe (C254) GLC 450d and Mercedes-Benz C-class Coupe (C205) Facelift 2018 AMG C 43 V6: 2.6 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
Mercedes-BenzC-class Coupe (C205)Facelift 2018AMG C 43 V6
235 hp/t
175 kW/t
4.3 kg/hp
Mercedes-BenzGLC Coupe (C254)GLC 450d
181 hp/t
135 kW/t
5.5 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Mercedes-BenzC-class Coupe (C205)Facelift 2018AMG C 43 V6
695 km
432 mi
Mercedes-BenzGLC Coupe (C254)GLC 450d
899 km
558 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzC-class Coupe (C205)Facelift 2018AMG C 43 V6
390 hp
291 kW
4.7 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Mercedes-BenzGLC Coupe (C254)GLC 450d
367 hp
274 kW
4.7 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
Mercedes-BenzC-class Coupe (C205)Facelift 2018AMG C 43 V6
Power
390 hp
291 kW
0-100 km/h4.7 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
400 L
14.1 cu ft
Length
4,693 mm
184.8 in
Height
1,402 mm
55.2 in
Mercedes-BenzGLC Coupe (C254)GLC 450d
Power
367 hp
274 kW
0-100 km/h4.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
545 L
19.2 cu ft
Length
4,764 mm
187.6 in
Height
1,605 mm
63.2 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
Mercedes-BenzC-class Coupe (C205)Facelift 2018AMG C 43 V6
Power
390 hp
291 kW
0-100 km/h4.7 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
Mercedes-BenzGLC Coupe (C254)GLC 450d
Power
367 hp
274 kW
0-100 km/h4.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.9 L/100 km
34.1 mpg US
40.9 mpg UK

Mercedes-Benz GLC Coupe (C254) GLC 450d 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
Mercedes-BenzC-class Coupe (C205)Facelift 2018AMG C 43 V6
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
4.7 s
Mercedes-BenzGLC Coupe (C254)GLC 450d
6.9 L/100 km
34.1 mpg US
40.9 mpg UK
4.7 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
Mercedes-BenzC-class Coupe (C205)Facelift 2018AMG C 43 V6
235 hp/t
175 kW/t
4.3 kg/hp
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
Mercedes-BenzGLC Coupe (C254)GLC 450d
181 hp/t
135 kW/t
5.5 kg/hp
6.9 L/100 km
34.1 mpg US
40.9 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzC-class Coupe (C205)Facelift 2018AMG C 43 V6Mercedes-BenzGLC Coupe (C254)GLC 450d
Power
390 hp
291 kW
367 hp
274 kW
Torque
520 Nm
384 lb-ft
750 Nm
553 lb-ft
Acceleration
4.7 s
4.7 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,660 kg
3,660 lb
2,025 kg
4,464 lb
Fuel consumption
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
6.9 L/100 km
34.1 mpg US
40.9 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
400 L
14.1 cu ft
Length
4,693 mm
184.8 in
Height
1,402 mm
55.2 in
Doors/seats
5 doors
5 seats
Trunk
545 L
19.2 cu ft
Length
4,764 mm
187.6 in
Height
1,605 mm
63.2 in
Range score
695 km
432 mi
899 km
558 mi
CO2 score
217 g/km
-
Trunk score
400 L
14.1 cu ft
545 L
19.2 cu ft
Power-to-weight score
235 hp/t
175 kW/t
4.3 kg/hp
181 hp/t
135 kW/t
5.5 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
VehicleMercedes-Benz C-class Coupe (C205) Facelift 2018 AMG C 43 V6Mercedes-Benz GLC Coupe (C254) GLC 450d
Consumption9.5 L/100 km24.8 mpg US29.7 mpg UK6.9 L/100 km34.1 mpg US40.9 mpg UK
Cost / 100 km16.63 LC100 km12.08 LC100 km
Cost / 100 mi26.76 LC100 mi19.43 LC100 mi
Annual fuel used1,425 L376 US gal313 UK gal1,035 L273 US gal228 UK gal
Annual fuel cost2,494 LC/year1,811 LC/year

Head-to-head comparisons

Mercedes-Benz C-class Coupe (C205) Facelift 2018 AMG C 43 V6

  • Has 23 hp more
  • Is 365 kg lighter
  • Has 5 km/h (3 mph) higher top speed
  • Has 54 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Lightest
  • Best power-to-weight ratio

Cons

  • Highest combined fuel consumption
  • Smallest trunk

Mercedes-Benz GLC Coupe (C254) GLC 450d

  • Has 230 Nm more
  • Uses 2.6 L/100 km less fuel
  • Has 204 km (127 mi) more estimated range
  • Has 145 L more trunk volume

Pros

  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Lowest power
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz C-class Coupe (C205) AMG C 43 V6
Mercedes-Benz GLC Coupe (C254) GLC 450d
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