Mercedes-Benz

2021 Mercedes-Benz C-Class

Petrol Sedan · C 300 4MATIC · W205 LCI
Selected version C 300 4MATIC W205 LCI · Exact specifications shown below
Only one recorded version for this model year
2021 Mercedes-Benz C-Class C 300 4MATIC studio car image
5.7
s
0-100
258
hp
Power
370
Nm
Torque
250
km/h
Top speed
1,600
kg
Weight
Compare
CarsbySpec review Is the 2021 Mercedes-Benz C-Class the best choice?

See its rating, value-for-money position, known-problem research and closest rivals.

Read the full review

The 2021 Mercedes-Benz C-Class is a petrol sedan with AWD and seating for 5. It belongs to the W205 LCI generation. The C 300 4MATIC is the version described here, and the figures below refer to that configuration unless noted otherwise.

Performance

The featured C 300 4MATIC version develops 258 hp and 370 Nm (273 lb-ft) of torque. Its listed 0-100 km/h time is 5.7 seconds, which is decisively quick for everyday road use. Top speed is listed at 250 km/h (155 mph). Its power output is about 25% above the peer average. Its 0-100 km/h time is about 23% quicker than the peer average. The figures establish its straight-line performance on paper, but they do not substitute for measured braking, handling or ride-quality tests.

Fuel economy and range

The listed fuel consumption is 7.8 L/100km. Fuel-tank capacity is 66.0 litres (17.4 US gallons). Recorded CO2 emissions are 178 g/km. Consumption, emissions and range can be measured under different regional procedures, so like-for-like comparisons should use the same market and test cycle.

Dimensions and practicality

Its exterior dimensions are 4,686 mm (184.5 in) in length, 1,810 mm (71.3 in) in width, and 1,442 mm (56.8 in) in height, while the wheelbase measures 2,840 mm (111.8 in). Cargo capacity is listed at 460 litres (16.2 cu ft), expanding to 1,370 litres (48.4 cu ft) with the rear seats folded. The cabin is configured for 5 occupants. Listed curb weight is 1,600 kg (3,527 lb). That cargo volume is close to the peer average. The measurements are useful for comparison, although seat comfort, access and the shape of the load area still need to be judged in person.

In perspective

Compared with nearby petrol sedan models from the same period, the 2021 Mercedes-Benz C-Class is strongest on power and acceleration, while price stands out as the principal numerical compromise. That conclusion is drawn from the recorded specifications rather than a road test. A final choice should also account for local pricing, equipment, comfort and a test drive.

Prepared by CarsbySpec. Peer context: 2020-2022 petrol sedans in the CarsbySpec database. This page is built from the structured specifications displayed here; missing values are not estimated. Read the methodology.

2021 Mercedes-Benz C-Class questions answered

How fast is the 2021 Mercedes-Benz C-Class from 0-100 km/h?

2021 Mercedes-Benz C-Class C 300 4MATIC is listed at 5.7 seconds from 0-100 km/h. Acceleration can differ by trim, market and test conditions.

What is the top speed of the 2021 Mercedes-Benz C-Class?

The featured specification has a listed top speed of 250 km/h, approximately 155 mph.

How much horsepower does the 2021 Mercedes-Benz C-Class have?

2021 Mercedes-Benz C-Class C 300 4MATIC is listed at 258 hp. Other 2021 trims may use a different engine, motor or power output.

How much torque does the 2021 Mercedes-Benz C-Class have?

The featured specification is listed at 370 Nm, approximately 273 lb-ft of torque.

What is the fuel economy or energy consumption of the 2021 Mercedes-Benz C-Class?

The featured specification records 7.8 L/100km. Use the same test cycle and unit when comparing it with another car.

How large is the 2021 Mercedes-Benz C-Class's fuel tank?

Fuel-tank capacity is listed at 66.0 litres, approximately 17.4 US gallons.

What are the dimensions of the 2021 Mercedes-Benz C-Class?

The featured specification is 4,686 mm (184.5 in) long, 1,810 mm (71.3 in) wide, 1,442 mm (56.8 in) tall, and a 2,840 mm wheelbase. Dimensions can vary slightly with trim, wheels and market equipment.

How much cargo or boot space does the 2021 Mercedes-Benz C-Class have?

The listed cargo capacity is 460 litres, approximately 16.2 cubic feet, increasing to 1,370 litres (48.4 cu ft) with the rear seats folded.

How much does the 2021 Mercedes-Benz C-Class weigh?

The featured specification has a listed curb weight of 1,600 kg, approximately 3,527 lb. Equipment can change the final vehicle weight.

How many seats does the 2021 Mercedes-Benz C-Class have?

The featured 2021 Mercedes-Benz C-Class specification is listed with 5 seats.

How much does the 2021 Mercedes-Benz C-Class cost?

The recorded starting MSRP for the featured specification is $42,550 USD. Pricing, taxes and equipment vary by country and model year.

What fuel type and drivetrain does the 2021 Mercedes-Benz C-Class use?

The featured entry is classified as a petrol sedan with AWD. Powertrain availability can vary by country and trim.

Are these 2021 Mercedes-Benz C-Class specifications based on a road test?

No. This is the model-year specification reference. The separate CarsbySpec review scores the car against comparable models, while neither page claims first-hand driving impressions unless an actual road test is explicitly documented.

What safety rating does the 2021 Mercedes-Benz C-Class have?

CarsbySpec does not yet hold a verified independent crash-test result matching this exact model year, generation and market. The car may be untested, tested under another name or specification, or still awaiting source review. Missing data is not treated as a zero score.