Car comparison

Mercedes-Benz C-class (W206) C 300dvsMercedes-Benz C-class (W206) · Facelift 2026 C 400e

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

New comparison

Mercedes-Benz C-class (W206)

C 300d

265 hp1993 ccDieselAWDAutomaticTwin-turboSedan2021-2026
VS

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

C 400e

258 hp1999 ccHybridAWDAutomaticTurbochargedSedan2026-present

Comparison overview

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

Best choices

Mercedes-Benz C-class (W206) C 300d

  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    265 hp
    198 kW
  • Highest torque
    550 Nm
    406 lb-ft
  • Lightest
    1,780 kg
    3,924 lb
  • Best power-to-weight
    149 hp/t
    111 kW/t
    6.7 kg/hp
  • Lowest combined fuel consumption
    5.3 L/100 km
    44.4 mpg US
    53.3 mpg UK
  • Best estimated range
    1,245 km
    774 mi
  • Largest trunk
    455 L
  • Best overall score
    69/100
  • Best performance score
    66/100
  • Best economy score
    93/100
  • Best practicality score
    74/100

Specification comparison

Specification comparison
ModelMercedes-BenzC-class (W206)C 300dMercedes-BenzC-class (W206)Facelift 2026C 400e
Power
265hp198kW
258hp192kW
Torque
550Nm406lb-ft
400Nm295lb-ft
Curb weight
1,780kg3,924lb
2,065kg4,553lb
Gross weight
2,400kg5,291lb
2,670kg5,886lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
255 km/h158 mph
Restricted
240 km/h149 mph
Calculated
To 99% top speed
58.4s99% target: 257 km/h / 160 mph
Calculated
54.1s99% target: 252 km/h / 157 mph
Calculated
0-100 km/h
5.9s
5.3s
0-200 km/h
18.2s
Calculated
17.2s
Calculated
0-60 mph
5.6s
Calculated
5.1s
Calculated
Fuel consumption
5.3L/100 km44.4mpg US53.3mpg UK
7.8L/100 km30.2mpg US36.2mpg UK
Fuel consumption city
7.1L/100 km33.1mpg US39.8mpg UK
-
Fuel consumption highway
4.2L/100 km56mpg US67.3mpg UK
-
Quarter mile
13.8s
Calculated
13.3s
Calculated
Power-to-weight
149hp/t111kW/t68hp/1000 lb
Calculated
125hp/t93kW/t57hp/1000 lb
Calculated
Torque-to-weight
309Nm/t207lb-ft/ton
Calculated
194Nm/t130lb-ft/ton
Calculated
Estimated range
1,245km774mi
Calculated
641km398mi
Calculated
Displacement
1,993cc122cu in
1,999cc122cu in
Length
4,751mm187in
4,766mm188in
Width
1,820mm72in
1,820mm72in
Height
1,438mm57in
1,442mm57in
Wheelbase
2,865mm113in
2,865mm113in
Front track
1,582mm62in
1,581mm62in
Rear track
1,594mm63in
1,583mm62in
Trunk volume
455L
315L
Doors
4
4
Seats
5
5
Fuel tank
66L
50L

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) C 300dMercedes-Benz C-class (W206) Facelift 2026 C 400ePowerTorque
  • Mercedes-Benz C-class (W206) C 300d: Power / Torque
  • Mercedes-Benz C-class (W206) Facelift 2026 C 400e: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzC-class (W206)C 300d4,200 rpm1,800-2,200 rpm4,450 rpm
Mercedes-BenzC-class (W206)Facelift 2026C 400e5,800 rpm2,000-3,200 rpm6,050 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzC-class (W206)C 300dMercedes-BenzC-class (W206)Facelift 2026C 400e
Acceleration checkpoints
0-60 mph
0-97 km/h
5.6 s
5.1 s
0-100 km/h
0-62 mph
5.9 s
5.3 s
0-200 km/h
0-124 mph
18.2 s
17.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
255 km/h158 mph
Restricted
240 km/h149 mph
Likely limited
Drag race simulation
60 ft
18 m
2.5 s
2.4 s
330 ft
101 m
6.3 s
6.0 s
1/8 mile
201 m
9.3 s
8.8 s
1000 ft
305 m
11.8 s
11.3 s
1/4 mile
402 m
13.8 s
13.3 s
Trap speed
1/4 mile
402 m
175 km/h
109 mph
178 km/h
111 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzC-class (W206)C 300d
265 hp
198 kW
Mercedes-BenzC-class (W206)Facelift 2026C 400e
258 hp
192 kW

Mercedes-Benz C-class (W206) C 300d has 7 hp more than Mercedes-Benz C-class (W206) Facelift 2026 C 400e.

The biggest power difference is between Mercedes-Benz C-class (W206) Facelift 2026 C 400e and Mercedes-Benz C-class (W206) C 300d: 7 hp (5 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzC-class (W206)C 300d
550 Nm
406 lb-ft
Mercedes-BenzC-class (W206)Facelift 2026C 400e
400 Nm
295 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Mercedes-BenzC-class (W206)C 300d
1,780 kg
3,924 lb
Mercedes-BenzC-class (W206)Facelift 2026C 400e
2,065 kg
4,553 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)C 300d
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Mercedes-BenzC-class (W206)Facelift 2026C 400e
Unrestricted
255 km/h158 mph
Restricted
240 km/h149 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)C 300d5.9 s
Mercedes-BenzC-class (W206)Facelift 2026C 400e5.3 s

Although Mercedes-Benz C-class (W206) C 300d has more power, Mercedes-Benz C-class (W206) Facelift 2026 C 400e is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Mercedes-Benz C-class (W206) Facelift 2026 C 400e and Mercedes-Benz C-class (W206) C 300d: 0.6 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)C 300d
5.3 L/100 km
44.4 mpg US
53.3 mpg UK
Mercedes-BenzC-class (W206)Facelift 2026C 400e
7.8 L/100 km
30.2 mpg US
36.2 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz C-class (W206) C 300d and Mercedes-Benz C-class (W206) Facelift 2026 C 400e: 2.5 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)C 300d
149 hp/t
111 kW/t
6.7 kg/hp
Mercedes-BenzC-class (W206)Facelift 2026C 400e
125 hp/t
93 kW/t
8.0 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Mercedes-BenzC-class (W206)C 300d
1,245 km
774 mi
Mercedes-BenzC-class (W206)Facelift 2026C 400e
641 km
398 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzC-class (W206)C 300d
265 hp
198 kW
5.9 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Mercedes-BenzC-class (W206)Facelift 2026C 400e
258 hp
192 kW
5.3 s
Unrestricted
255 km/h158 mph
Restricted
240 km/h149 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)C 300d
Power
265 hp
198 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
455 L
16.1 cu ft
Length
4,751 mm
187.0 in
Height
1,438 mm
56.6 in
Mercedes-BenzC-class (W206)Facelift 2026C 400e
Power
258 hp
192 kW
0-100 km/h5.3 s
Top speed
Unrestricted
255 km/h158 mph
Restricted
240 km/h149 mph
Doors/seats
4 doors
5 seats
Trunk
315 L
11.1 cu ft
Length
4,766 mm
187.6 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 (W206)C 300d
Power
265 hp
198 kW
0-100 km/h5.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
5.3 L/100 km
44.4 mpg US
53.3 mpg UK
Mercedes-BenzC-class (W206)Facelift 2026C 400e
Power
258 hp
192 kW
0-100 km/h5.3 s
Top speed
Unrestricted
255 km/h158 mph
Restricted
240 km/h149 mph
7.8 L/100 km
30.2 mpg US
36.2 mpg UK

Mercedes-Benz C-class (W206) 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 (W206)C 300d
5.3 L/100 km
44.4 mpg US
53.3 mpg UK
5.9 s
Mercedes-BenzC-class (W206)Facelift 2026C 400e
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
5.3 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)C 300d
149 hp/t
111 kW/t
6.7 kg/hp
5.3 L/100 km
44.4 mpg US
53.3 mpg UK
Mercedes-BenzC-class (W206)Facelift 2026C 400e
125 hp/t
93 kW/t
8.0 kg/hp
7.8 L/100 km
30.2 mpg US
36.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzC-class (W206)C 300dMercedes-BenzC-class (W206)Facelift 2026C 400e
Power
265 hp
198 kW
258 hp
192 kW
Torque
550 Nm
406 lb-ft
400 Nm
295 lb-ft
Acceleration
5.9 s
5.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
255 km/h158 mph
Restricted
240 km/h149 mph
Lightness
1,780 kg
3,924 lb
2,065 kg
4,553 lb
Fuel consumption
5.3 L/100 km
44.4 mpg US
53.3 mpg UK
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
455 L
16.1 cu ft
Length
4,751 mm
187.0 in
Height
1,438 mm
56.6 in
Doors/seats
4 doors
5 seats
Trunk
315 L
11.1 cu ft
Length
4,766 mm
187.6 in
Height
1,442 mm
56.8 in
Range score
1,245 km
774 mi
641 km
398 mi
Trunk score
455 L
16.1 cu ft
315 L
11.1 cu ft
Power-to-weight score
149 hp/t
111 kW/t
6.7 kg/hp
125 hp/t
93 kW/t
8.0 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) C 300dMercedes-Benz C-class (W206) Facelift 2026 C 400e
Consumption5.3 L/100 km44.4 mpg US53.3 mpg UK7.8 L/100 km30.2 mpg US36.2 mpg UK
Cost / 100 km9.28 LC100 km13.65 LC100 km
Cost / 100 mi14.93 LC100 mi21.97 LC100 mi
Annual fuel used795 L210 US gal175 UK gal1,170 L309 US gal257 UK gal
Annual fuel cost1,391 LC/year2,048 LC/year

Head-to-head comparisons

Mercedes-Benz C-class (W206) C 300d

  • Has 7 hp more
  • Has 150 Nm more
  • Is 285 kg lighter
  • Has 5 km/h (3 mph) higher top speed
  • Uses 2.5 L/100 km less fuel
  • Has 24 hp/t better power-to-weight
  • Has 604 km (375 mi) more estimated range
  • Has 140 L more trunk volume

Pros

  • Highest top speed
  • Most powerful
  • Highest torque
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h

Choose cars to compare

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Model
Generation
Engine or modification
Mercedes-Benz C-class (W206) C 300d
Mercedes-Benz C-class (W206) C 400e
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