Car comparison

Mercedes-Benz C-class (W206) · Facelift 2026 C 300vsMercedes-Benz C-class (W203) · Facelift 2004 C 350 V6

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

New comparison

Mercedes-Benz C-class (W206) · Facelift 2026

C 300

258 hp1999 ccGasolineRWDAutomaticTurbochargedSedan2026-present
VS

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

C 350 V6

272 hp3498 ccGasolineRWDAutomaticNaturally aspiratedSedan2005-2007

Comparison overview

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

Best choices

Mercedes-Benz C-class (W206) Facelift 2026 C 300

  • Quickest 0-100 km/h
    6.1 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Highest torque
    400 Nm
    295 lb-ft
  • Lowest combined fuel consumption
    7.0 L/100 km
    33.6 mpg US
    40.4 mpg UK
  • Best estimated range
    943 km
    586 mi
  • Largest trunk
    455 L
  • Best overall score
    67/100
  • Best performance score
    63/100
  • Best economy score
    88/100
  • Best practicality score
    74/100

Specification comparison

Specification comparison
ModelMercedes-BenzC-class (W206)Facelift 2026C 300Mercedes-BenzC-class (W203)Facelift 2004C 350 V6
Power
258hp192kW
272hp203kW
Torque
400Nm295lb-ft
350Nm258lb-ft
Curb weight
1,685kg3,715lb
1,495kg3,296lb
Gross weight
2,280kg5,027lb
2,030kg4,475lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
61.1s99% target: 262 km/h / 163 mph
Calculated
61.8s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
6.1s
6.4s
0-200 km/h
18.4s
Calculated
18.9s
Calculated
0-60 mph
5.8s
Calculated
6.1s
Calculated
Fuel consumption
7L/100 km33.6mpg US40.4mpg UK
10L/100 km23.5mpg US28.2mpg UK
Fuel consumption city-
14.2L/100 km16.6mpg US19.9mpg UK
Fuel consumption highway-
7.6L/100 km30.9mpg US37.2mpg UK
Quarter mile
14.0s
Calculated
14.3s
Calculated
Power-to-weight
153hp/t114kW/t69hp/1000 lb
Calculated
182hp/t136kW/t83hp/1000 lb
Calculated
Torque-to-weight
237Nm/t159lb-ft/ton
Calculated
234Nm/t157lb-ft/ton
Calculated
Estimated range
943km586mi
Calculated
620km385mi
Calculated
Displacement
1,999cc122cu in
3,498cc213cu in
Length
4,766mm188in
4,526mm178in
Width
1,820mm72in
1,728mm68in
Height
1,438mm57in
1,430mm56in
Wheelbase
2,865mm113in
2,715mm107in
Front track
1,582mm62in
1,493mm59in
Rear track
1,594mm63in
1,464mm58in
Trunk volume
455L
455L
Doors
4
4
Seats
5
5
Fuel tank
66L
62L

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 (W206) Facelift 2026 C 300Mercedes-Benz C-class (W203) Facelift 2004 C 350 V6PowerTorque
  • Mercedes-Benz C-class (W206) Facelift 2026 C 300: Power / Torque
  • Mercedes-Benz C-class (W203) Facelift 2004 C 350 V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzC-class (W206)Facelift 2026C 3005,800 rpm2,000-3,200 rpm6,050 rpm
Mercedes-BenzC-class (W203)Facelift 2004C 350 V66,000 rpm2,400-5,000 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzC-class (W206)Facelift 2026C 300Mercedes-BenzC-class (W203)Facelift 2004C 350 V6
Acceleration checkpoints
0-60 mph
0-97 km/h
5.8 s
6.1 s
0-100 km/h
0-62 mph
6.1 s
6.4 s
0-200 km/h
0-124 mph
18.4 s
18.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Limited
Drag race simulation
60 ft
18 m
2.6 s
2.7 s
330 ft
101 m
6.4 s
6.6 s
1/8 mile
201 m
9.4 s
9.6 s
1000 ft
305 m
11.9 s
12.2 s
1/4 mile
402 m
14.0 s
14.3 s
Trap speed
1/4 mile
402 m
175 km/h
109 mph
173 km/h
108 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzC-class (W206)Facelift 2026C 300
258 hp
192 kW
Mercedes-BenzC-class (W203)Facelift 2004C 350 V6
272 hp
203 kW

Mercedes-Benz C-class (W203) Facelift 2004 C 350 V6 has 14 hp more than Mercedes-Benz C-class (W206) Facelift 2026 C 300.

The biggest power difference is between Mercedes-Benz C-class (W206) Facelift 2026 C 300 and Mercedes-Benz C-class (W203) Facelift 2004 C 350 V6: 14 hp (10 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzC-class (W206)Facelift 2026C 300
400 Nm
295 lb-ft
Mercedes-BenzC-class (W203)Facelift 2004C 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
Mercedes-BenzC-class (W206)Facelift 2026C 300
1,685 kg
3,715 lb
Mercedes-BenzC-class (W203)Facelift 2004C 350 V6
1,495 kg
3,296 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 (W206)Facelift 2026C 300
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Mercedes-BenzC-class (W203)Facelift 2004C 350 V6
Unrestricted
265 km/h165 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 (W206)Facelift 2026C 3006.1 s
Mercedes-BenzC-class (W203)Facelift 2004C 350 V66.4 s

Although Mercedes-Benz C-class (W203) Facelift 2004 C 350 V6 has more power, Mercedes-Benz C-class (W206) Facelift 2026 C 300 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Mercedes-Benz C-class (W206) Facelift 2026 C 300 and Mercedes-Benz C-class (W203) Facelift 2004 C 350 V6: 0.3 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 (W206)Facelift 2026C 300
7.0 L/100 km
33.6 mpg US
40.4 mpg UK
Mercedes-BenzC-class (W203)Facelift 2004C 350 V6
10.0 L/100 km
23.5 mpg US
28.2 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz C-class (W206) Facelift 2026 C 300 and Mercedes-Benz C-class (W203) Facelift 2004 C 350 V6: 3.0 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
Mercedes-BenzC-class (W206)Facelift 2026C 300
153 hp/t
114 kW/t
6.5 kg/hp
Mercedes-BenzC-class (W203)Facelift 2004C 350 V6
182 hp/t
136 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 (W206)Facelift 2026C 300
943 km
586 mi
Mercedes-BenzC-class (W203)Facelift 2004C 350 V6
620 km
385 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzC-class (W206)Facelift 2026C 300
258 hp
192 kW
6.1 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
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

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 (W206)Facelift 2026C 300
Power
258 hp
192 kW
0-100 km/h6.1 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
4,766 mm
187.6 in
Height
1,438 mm
56.6 in
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

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 (W206)Facelift 2026C 300
Power
258 hp
192 kW
0-100 km/h6.1 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
7.0 L/100 km
33.6 mpg US
40.4 mpg UK
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-Benz C-class (W206) Facelift 2026 C 300 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 (W206)Facelift 2026C 300
7.0 L/100 km
33.6 mpg US
40.4 mpg UK
6.1 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

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 (W206)Facelift 2026C 300
153 hp/t
114 kW/t
6.5 kg/hp
7.0 L/100 km
33.6 mpg US
40.4 mpg UK
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

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzC-class (W206)Facelift 2026C 300Mercedes-BenzC-class (W203)Facelift 2004C 350 V6
Power
258 hp
192 kW
272 hp
203 kW
Torque
400 Nm
295 lb-ft
350 Nm
258 lb-ft
Acceleration
6.1 s
6.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,685 kg
3,715 lb
1,495 kg
3,296 lb
Fuel consumption
7.0 L/100 km
33.6 mpg US
40.4 mpg UK
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
455 L
16.1 cu ft
Length
4,766 mm
187.6 in
Height
1,438 mm
56.6 in
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
Range score
943 km
586 mi
620 km
385 mi
Trunk score
455 L
16.1 cu ft
455 L
16.1 cu ft
Power-to-weight score
153 hp/t
114 kW/t
6.5 kg/hp
182 hp/t
136 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 (W206) Facelift 2026 C 300Mercedes-Benz C-class (W203) Facelift 2004 C 350 V6
Consumption7 L/100 km33.6 mpg US40.4 mpg UK10 L/100 km23.5 mpg US28.2 mpg UK
Cost / 100 km12.25 LC100 km17.50 LC100 km
Cost / 100 mi19.71 LC100 mi28.16 LC100 mi
Annual fuel used1,050 L277 US gal231 UK gal1,500 L396 US gal330 UK gal
Annual fuel cost1,838 LC/year2,625 LC/year

Head-to-head comparisons

Mercedes-Benz C-class (W206) Facelift 2026 C 300

  • Has 50 Nm more
  • Is 0.3 s quicker from 0-100 km/h
  • Uses 3.0 L/100 km less fuel
  • Has 323 km (201 mi) more estimated range

Pros

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

Cons

  • Lowest power
  • Heaviest

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz C-class (W206) C 300
Mercedes-Benz C-class (W203) C 350 V6
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2 vehicles selected

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Mercedes-Benz C-class (W206) · Facelift 2026 C 300 vs Mercedes-Benz C-class (W203) · Facelift 2004 C 350 V6 - car comparison - FastVsFaster