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@ Mercedes-Benz Group Media

BMW 4 Series Gran Coupe vs Mercedes B Class – Performance, range & efficiency compared

Q: What is the maximum horsepower of the BMW 4 Series Gran Coupe?

Up to 392 HP of power – depending on the configuration.

Q: What is the fuel consumption of the BMW 4 Series Gran Coupe according to the manufacturer?

Fuel consumption according to the manufacturer is 5 L.

Q: What is the BMW 4 Series Gran Coupe’s trunk volume?

Depending on configuration, up to 470 L fit inside.

Q: How big is the BMW 4 Series Gran Coupe overall?

Overall, the BMW 4 Series Gran Coupe is 4783 mm long, 1852 mm wide and 1442 mm high.

Q: What drivetrain options does the Mercedes B Class have?

The Mercedes B Class is offered with Front-Wheel Drive or All-Wheel Drive.

Q: How much power does the Mercedes B Class deliver on the road?

Up to 238 HP of power – depending on the configuration.

Q: What is the fuel consumption of the Mercedes B Class according to the manufacturer?

Based on WLTP testing, consumption is around 2.50 L.

Q: What is the Mercedes B Class’s maximum WLTP range?

Depending on equipment, the WLTP range reaches up to 83 km.

Q: How many kWh does the Mercedes B Class’s battery hold?

The Mercedes B Class comes with a 12.90 kWh battery.

Compare performance, boot capacity, efficiency and price at a glance.
Find out which car is the better choice for you – BMW 4 Series Gran Coupe or Mercedes B Class?

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BMW 4 Series Gran Coupe

Mercedes B Class

5 (4 Reviews)

Here’s where it gets real: The technical differences in detail

4 Series Gran Coupe @ BMW Group Press

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

Mercedes B Class has a distinct advantage in terms of price – it starts at 33100 £, while the BMW 4 Series Gran Coupe costs 45700 £. That’s a price difference of around 12556 £.

Fuel consumption also shows a difference: Mercedes B Class manages with 2.50 L and is therefore significantly more efficient than the BMW 4 Series Gran Coupe with 5 L. The difference is about 2.50 L per 100 km.

B Class @ Mercedes-Benz Group Media

Engine and Performance:

Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.

When it comes to engine power, the BMW 4 Series Gran Coupe has a noticeable edge – offering 392 HP compared to 238 HP. That’s roughly 154 HP more horsepower.

In acceleration from 0 to 100 km/h, the BMW 4 Series Gran Coupe is clearly quicker – completing the sprint in 4.60 s, while the Mercedes B Class takes 6.50 s. That’s about 1.90 s faster.

There’s no difference in top speed – both reach 250 km/h.

There’s also a difference in torque: BMW 4 Series Gran Coupe pulls distinct stronger with 650 Nm compared to 450 Nm. That’s about 200 Nm difference.

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4 Series Gran Coupe @ BMW Group Press

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 5 people.

In curb weight, Mercedes B Class is clearly perceptible lighter – 1405 kg compared to 1695 kg. The difference is around 290 kg.

In terms of boot space, the BMW 4 Series Gran Coupe offers hardly perceptible more room – 470 L compared to 455 L. That’s a difference of about 15 L.

In maximum load capacity, the Mercedes B Class performs somewhat better – up to 1540 L, which is about 250 L more than the BMW 4 Series Gran Coupe.

When it comes to payload, Mercedes B Class a bit takes the win – 550 kg compared to 480 kg. That’s a difference of about 70 kg.

Who comes out on top?

Overall, the Mercedes B Class shows itself to be outperforms in nearly all aspects and secures the title of DriveDuel Champion.
It convinces with the more balanced overall package and proves to be the more versatile choice for everyday use.

BMW 4 Series Gran Coupe

Mercedes B Class

Costs and Consumption

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Price

Consumption L/100km

co2

Fuel tank capacity

Engine and Performance

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Power HP

Acceleration 0-100km/h

Torque

Number of Cylinders

Power kW

Engine capacity

Dimensions and Body

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Curb weight

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from about £33,100

@ Mercedes-Benz Group Media

Mercedes B Class

Price : 33100 - 52500 £
Body Type : MPV
Engine Type : Plugin Hybrid, Petrol MHEV, Diesel
Transmission : Automatic
Transmission Detail : Dual-Clutch Automatic
Drive Type : Front-Wheel Drive, All-Wheel Drive
Power HP : 116 - 238 HP
Consumption L/100km : 2.5 - 6.9 L
Electric Range : 83 km
Battery Capacity : 12.90 kWh
Seats : 5
Acceleration 0-100km/h : 6.5 - 10 s
Model Year : 2024 - 2025
Max Speed : 200 - 250 km/h
Torque : 200 - 450 Nm
Number of Cylinders : 4
Doors : 5
Model : B-Klasse
Modell : B 250 e, B 180, B 200, B 220, B 250, B 180 d, B 200 d, B 220 d
CO2 Efficiency Class : B, D, E, F
Trim Level : 8G-DCT, Advanced 8G-DCT, AMG Line Advanced Plus 8G-DCT, AMG Line Premium 8G-DCT, Progressive Line Advanced 8G-DCT, Progressive Line Advanced Plus 8G-DCT, AMG Line Premium Plus 8G-DCT, 7G-DCT, Advanced 7G-DCT, Progressive Line Advanced 7G-DCT, Progressive Line Advanced Plus 7G-DCT, AMG Line Advanced Plus 7G-DCT, AMG Line Premium 7G-DCT, AMG Line Premium Plus 7G-DCT, 4MATIC 8G-DCT, Advanced 4MATIC 8G-DCT, Progressive Line Advanced 4MATIC 8G-DCT, Progressive Line Advanced Plus 4MATIC 8G-DCT, AMG Line Advanced Plus 4MATIC 8G-DCT, AMG Line Premium 4MATIC 8G-DCT, AMG Line Premium Plus 4MATIC 8G-DCT
Power kW : 85 - 175 kW
co2 : 56 - 156 g/km
Engine capacity : 1332 - 1991 cm3
Curb weight : 1405 - 1745 kg
Fuel tank capacity : 35 - 51 L
Trunk capacity : 405 - 455 L
Length : 4419 mm
Width : 1796 mm
Height : 1562 mm
Brand : Mercedes-Benz
Max trunk capacity : 1440 - 1540 L
Payload : 505 - 550 kg

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BMW 4 Series Gran Coupe

The BMW 4 Series Gran Coupe marries coupe-like drama with hatchback practicality, offering a sloping roofline that still lets you load bags without a wrestling match. It steers with familiar BMW poise, so buyers after sporty looks and everyday usability get the best of both worlds—and a car that makes the commute feel a bit more glamorous.

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@ BMW Group Press

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Mercedes B Class

5 (4 Reviews)

The Mercedes B-Class is a smart, grown-up compact people carrier that dresses everyday practicality in a near‑premium polish, perfect for buyers who want comfort and a classy badge without the theatrics. It won’t set your pulse racing on a back road, but it will make school runs, commutes and grocery hauls feel pleasantly civilized — a reliable, slightly posh companion for real life.

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Mercedes B Class

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Mercedes GLA

The Mercedes B‑Class is the practical, airy people‑carrier that prioritises space and comfort, while the Mercedes GLA takes the same mechanical smarts and adds SUV looks, higher ride height and a touch more road presence. Pick the B‑Class for family‑friendly sense and efficiency, choose the GLA if …

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BMW 2 Series Active Tourer

@ Mercedes-Benz Group Media

Mercedes B Class

The BMW 2 Series Active Tourer and Mercedes B Class compete for the top spot in your garage. See how both models differ in key areas like performance, running costs, interior space and technology. A fast, clear comparison helps you pick the one that fits your needs best.

BMW 4 Series Gran Coupe

Mercedes B Class

@ BMW Group Press	@ Mercedes-Benz Group Media

Costs and Consumption
Price 45700 - 68000 £	Price 33100 - 52500 £
Consumption L/100km 5 - 7.8 L	Consumption L/100km 2.5 - 6.9 L
Consumption kWh/100km -	Consumption kWh/100km -
Electric Range -	Electric Range 83 km
Battery Capacity -	Battery Capacity 12.90 kWh
co2 131 - 179 g/km	co2 56 - 156 g/km
Fuel tank capacity 59 L	Fuel tank capacity 35 - 51 L

Dimensions and Body
Body Type Hatchback	Body Type MPV
Seats 5	Seats 5
Doors 5	Doors 5
Curb weight 1695 - 1935 kg	Curb weight 1405 - 1745 kg
Trunk capacity 470 L	Trunk capacity 405 - 455 L
Length 4783 mm	Length 4419 mm
Width 1852 mm	Width 1796 mm
Height 1442 mm	Height 1562 mm
Max trunk capacity 1290 L	Max trunk capacity 1440 - 1540 L
Payload 480 kg	Payload 505 - 550 kg

Engine and Performance
Engine Type Diesel MHEV, Petrol, Petrol MHEV	Engine Type Plugin Hybrid, Petrol MHEV, Diesel
Transmission Automatic	Transmission Automatic
Transmission Detail Automatic Gearbox	Transmission Detail Dual-Clutch Automatic
Drive Type Rear-Wheel Drive, All-Wheel Drive	Drive Type Front-Wheel Drive, All-Wheel Drive
Power HP 184 - 392 HP	Power HP 116 - 238 HP
Acceleration 0-100km/h 4.6 - 7.9 s	Acceleration 0-100km/h 6.5 - 10 s
Max Speed 233 - 250 km/h	Max Speed 200 - 250 km/h
Torque 300 - 650 Nm	Torque 200 - 450 Nm
Number of Cylinders 4 - 6	Number of Cylinders 4
Power kW 135 - 288 kW	Power kW 85 - 175 kW
Engine capacity 1995 - 2998 cm3	Engine capacity 1332 - 1991 cm3