Car comparison

Mercedes-Benz C-class (W203) · Facelift 2004 C 350 V6vsMercedes-Benz C-class (W205) · Facelift 2018 C 300d

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

New comparison

Mercedes-Benz C-class (W203) · Facelift 2004

C 350 V6

272 hp3498 ccGasolineRWDAutomaticNaturally aspiratedSedan2005-2007
VS

Mercedes-Benz C-class (W205) · Facelift 2018

C 300d

245 hp1950 ccDieselRWDAutomaticTurbochargedSedan2018-2021

Comparison overview

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

Best choices

Mercedes-Benz C-class (W205) Facelift 2018 C 300d

  • Quickest 0-100 km/h
    5.9 s
  • Highest torque
    500 Nm
    369 lb-ft
  • Lowest combined fuel consumption
    5.4 L/100 km
    43.6 mpg US
    52.3 mpg UK
  • Lowest city consumption
    6.3 L/100 km
    37.3 mpg US
    44.8 mpg UK
  • Lowest highway consumption
    4.8 L/100 km
    49.0 mpg US
    58.9 mpg UK
  • Best estimated range
    759 km
    472 mi
  • Best overall score
    69/100
  • Best performance score
    65/100
  • Best economy score
    92/100
  • Best practicality score
    77/100

Specification comparison

Specification comparison
ModelMercedes-BenzC-class (W203)Facelift 2004C 350 V6Mercedes-BenzC-class (W205)Facelift 2018C 300d
Power
272hp203kW
245hp183kW
Torque
350Nm258lb-ft
500Nm369lb-ft
Curb weight
1,495kg3,296lb
1,560kg3,439lb
Gross weight
2,030kg4,475lb
2,215kg4,883lb
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
61.8s99% target: 262 km/h / 163 mph
Calculated
58.6s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
6.4s
5.9s
0-200 km/h
18.9s
Calculated
18.2s
Calculated
0-60 mph
6.1s
Calculated
5.6s
Calculated
Fuel consumption
10L/100 km23.5mpg US28.2mpg UK
5.4L/100 km43.6mpg US52.3mpg UK
Fuel consumption city
14.2L/100 km16.6mpg US19.9mpg UK
6.3L/100 km37.3mpg US44.8mpg UK
Fuel consumption highway
7.6L/100 km30.9mpg US37.2mpg UK
4.8L/100 km49mpg US58.9mpg UK
Quarter mile
14.3s
Calculated
13.8s
Calculated
Power-to-weight
182hp/t136kW/t83hp/1000 lb
Calculated
157hp/t117kW/t71hp/1000 lb
Calculated
Torque-to-weight
234Nm/t157lb-ft/ton
Calculated
321Nm/t214lb-ft/ton
Calculated
Estimated range
620km385mi
Calculated
759km472mi
Calculated
Displacement
3,498cc213cu in
1,950cc119cu in
Length
4,526mm178in
4,686mm184in
Width
1,728mm68in
1,810mm71in
Height
1,430mm56in
1,442mm57in
Wheelbase
2,715mm107in
2,840mm112in
Front track
1,493mm59in
1,588mm63in
Rear track
1,464mm58in
-
Ground clearance-
92mm4in
Trunk volume
455L
-
Doors
4
4
Seats
5
5
Fuel tank
62L
41L
CO2 emissions-
142g/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 (W203) Facelift 2004 C 350 V6Mercedes-Benz C-class (W205) Facelift 2018 C 300dPowerTorque
  • Mercedes-Benz C-class (W203) Facelift 2004 C 350 V6: Power / Torque
  • Mercedes-Benz C-class (W205) Facelift 2018 C 300d: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzC-class (W203)Facelift 2004C 350 V66,000 rpm2,400-5,000 rpm6,250 rpm
Mercedes-BenzC-class (W205)Facelift 2018C 300d-1,600-2,400 rpm2,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzC-class (W203)Facelift 2004C 350 V6Mercedes-BenzC-class (W205)Facelift 2018C 300d
Acceleration checkpoints
0-60 mph
0-97 km/h
6.1 s
5.6 s
0-100 km/h
0-62 mph
6.4 s
5.9 s
0-200 km/h
0-124 mph
18.9 s
18.2 s
Top speed
Unrestricted
265 km/h165 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
2.7 s
2.5 s
330 ft
101 m
6.6 s
6.3 s
1/8 mile
201 m
9.6 s
9.3 s
1000 ft
305 m
12.2 s
11.8 s
1/4 mile
402 m
14.3 s
13.8 s
Trap speed
1/4 mile
402 m
173 km/h
108 mph
175 km/h
109 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzC-class (W203)Facelift 2004C 350 V6
272 hp
203 kW
Mercedes-BenzC-class (W205)Facelift 2018C 300d
245 hp
183 kW

Mercedes-Benz C-class (W203) Facelift 2004 C 350 V6 has 27 hp more than Mercedes-Benz C-class (W205) Facelift 2018 C 300d.

The biggest power difference is between Mercedes-Benz C-class (W205) Facelift 2018 C 300d and Mercedes-Benz C-class (W203) Facelift 2004 C 350 V6: 27 hp (20 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzC-class (W203)Facelift 2004C 350 V6
350 Nm
258 lb-ft
Mercedes-BenzC-class (W205)Facelift 2018C 300d
500 Nm
369 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Mercedes-BenzC-class (W203)Facelift 2004C 350 V6
1,495 kg
3,296 lb
Mercedes-BenzC-class (W205)Facelift 2018C 300d
1,560 kg
3,439 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 (W203)Facelift 2004C 350 V6
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Mercedes-BenzC-class (W205)Facelift 2018C 300d
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 (W203)Facelift 2004C 350 V66.4 s
Mercedes-BenzC-class (W205)Facelift 2018C 300d5.9 s

Although Mercedes-Benz C-class (W203) Facelift 2004 C 350 V6 has more power, Mercedes-Benz C-class (W205) Facelift 2018 C 300d is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Mercedes-Benz C-class (W205) Facelift 2018 C 300d and Mercedes-Benz C-class (W203) Facelift 2004 C 350 V6: 0.5 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 (W203)Facelift 2004C 350 V6
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
Mercedes-BenzC-class (W205)Facelift 2018C 300d
5.4 L/100 km
43.6 mpg US
52.3 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz C-class (W205) Facelift 2018 C 300d and Mercedes-Benz C-class (W203) Facelift 2004 C 350 V6: 4.6 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 (W203)Facelift 2004C 350 V6
182 hp/t
136 kW/t
5.5 kg/hp
Mercedes-BenzC-class (W205)Facelift 2018C 300d
157 hp/t
117 kW/t
6.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Mercedes-BenzC-class (W203)Facelift 2004C 350 V6
620 km
385 mi
Mercedes-BenzC-class (W205)Facelift 2018C 300d
759 km
472 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzC-class (W203)Facelift 2004C 350 V6
272 hp
203 kW
6.4 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Mercedes-BenzC-class (W205)Facelift 2018C 300d
245 hp
183 kW
5.9 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 (W203)Facelift 2004C 350 V6
Power
272 hp
203 kW
0-100 km/h6.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
455 L
16.1 cu ft
Length
4,526 mm
178.2 in
Height
1,430 mm
56.3 in
Mercedes-BenzC-class (W205)Facelift 2018C 300d
Power
245 hp
183 kW
0-100 km/h5.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk-
Length
4,686 mm
184.5 in
Height
1,442 mm
56.8 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 (W203)Facelift 2004C 350 V6
Power
272 hp
203 kW
0-100 km/h6.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
Mercedes-BenzC-class (W205)Facelift 2018C 300d
Power
245 hp
183 kW
0-100 km/h5.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
5.4 L/100 km
43.6 mpg US
52.3 mpg UK

Mercedes-Benz C-class (W205) Facelift 2018 C 300d 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 (W203)Facelift 2004C 350 V6
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
6.4 s
Mercedes-BenzC-class (W205)Facelift 2018C 300d
5.4 L/100 km
43.6 mpg US
52.3 mpg UK
5.9 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 (W203)Facelift 2004C 350 V6
182 hp/t
136 kW/t
5.5 kg/hp
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
Mercedes-BenzC-class (W205)Facelift 2018C 300d
157 hp/t
117 kW/t
6.4 kg/hp
5.4 L/100 km
43.6 mpg US
52.3 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzC-class (W203)Facelift 2004C 350 V6Mercedes-BenzC-class (W205)Facelift 2018C 300d
Power
272 hp
203 kW
245 hp
183 kW
Torque
350 Nm
258 lb-ft
500 Nm
369 lb-ft
Acceleration
6.4 s
5.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,495 kg
3,296 lb
1,560 kg
3,439 lb
Fuel consumption
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
5.4 L/100 km
43.6 mpg US
52.3 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
455 L
16.1 cu ft
Length
4,526 mm
178.2 in
Height
1,430 mm
56.3 in
Doors/seats
4 doors
5 seats
Trunk-
Length
4,686 mm
184.5 in
Height
1,442 mm
56.8 in
Range score
620 km
385 mi
759 km
472 mi
CO2 score
-
142 g/km
Trunk score
455 L
16.1 cu ft
-
Power-to-weight score
182 hp/t
136 kW/t
5.5 kg/hp
157 hp/t
117 kW/t
6.4 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 (W203) Facelift 2004 C 350 V6Mercedes-Benz C-class (W205) Facelift 2018 C 300d
Consumption10 L/100 km23.5 mpg US28.2 mpg UK5.4 L/100 km43.6 mpg US52.3 mpg UK
Cost / 100 km17.50 LC100 km9.45 LC100 km
Cost / 100 mi28.16 LC100 mi15.21 LC100 mi
Annual fuel used1,500 L396 US gal330 UK gal810 L214 US gal178 UK gal
Annual fuel cost2,625 LC/year1,418 LC/year

Head-to-head comparisons

Mercedes-Benz C-class (W203) Facelift 2004 C 350 V6

  • Has 27 hp more
  • Is 65 kg lighter
  • Has 5 km/h (3 mph) higher top speed
  • Has 25 hp/t better power-to-weight

Pros

  • Highest top speed
  • Most powerful
  • Lightest
  • Best power-to-weight ratio

Cons

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

Mercedes-Benz C-class (W205) Facelift 2018 C 300d

  • Has 150 Nm more
  • Is 0.5 s quicker from 0-100 km/h
  • Uses 4.6 L/100 km less fuel
  • Has 139 km (87 mi) more estimated range

Pros

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

Cons

  • Lowest power
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz C-class (W203) C 350 V6
Mercedes-Benz C-class (W205) C 300d
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2 vehicles selected

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Mercedes-Benz C-class (W203) · Facelift 2004 C 350 V6 vs Mercedes-Benz C-class (W205) · Facelift 2018 C 300d - car comparison - FastVsFaster