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BMW X4 VS Mercedes B Class – Specs, Efficiency & Price Comparison

Which model is the better choice – the BMW X4 or the Mercedes B Class? We compare performance (510 HP vs 238 HP), boot capacity (525 L vs 455 L), efficiency (6 L vs 0.80 L), and of course, the price (51300 £ vs 32900 £).
Find out now which car fits your needs better!

The BMW X4 (SUV) is powered by a Petrol MHEV, Diesel MHEV or Petrol engine and comes with a Automatic transmission. In comparison, the Mercedes B Class (MPV) features a Petrol MHEV, Diesel or Plugin Hybrid engine and a Automatic gearbox.

When it comes to boot capacity, the BMW X4 offers 525 L, while the Mercedes B Class provides 455 L – depending on what matters most to you. If you’re looking for more power, you’ll need to decide whether the 510 HP of the BMW X4 or the 238 HP of the Mercedes B Class suits your needs better.

There are also differences in efficiency: 6 L vs 0.80 L. In terms of price, the BMW X4 starts at 51300 £, while the Mercedes B Class is available from 32900 £.

Compare all the key specs now and find out which model fits your lifestyle best!

BMW X4

The BMW X4 captures attention with its striking coupe-like design, combining elegance with a sense of adventure. Its interior boasts luxurious materials and cutting-edge technology, ensuring both comfort and connectivity for the driver and passengers. The vehicle delivers an engaging driving experience, with responsive handling that makes it a joy to navigate both urban streets and winding country roads.

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Mercedes B Class

The Mercedes-Benz B-Class offers a blend of practicality and luxury that sets it apart in the compact MPV segment. Its spacious and versatile interior is complemented by high-quality materials and a sleek design, making it ideal for both families and individuals seeking a touch of elegance on their daily commute. Advanced technology and safety features round out the package, ensuring a comfortable and secure driving experience.

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BMW X4
Mercedes B Class
X4
B Class

Costs and Consumption

Price
51300 - 92000 £
Price
32900 - 52500 £
Consumption L/100km
6 - 10.7 L
Consumption L/100km
0.8 - 7.1 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
83 km
Battery Capacity
-
Battery Capacity
12.90 kWh
co2
156 - 244 g/km
co2
18 - 160 g/km
Fuel tank capacity
65 - 68 L
Fuel tank capacity
35 - 51 L

Dimensions and Body

Body Type
SUV
Body Type
MPV
Seats
5
Seats
5
Doors
5
Doors
5
Curb weight
1875 - 2095 kg
Curb weight
1405 - 1745 kg
Trunk capacity
525 L
Trunk capacity
405 - 455 L
Length
4751 - 4754 mm
Length
4419 mm
Width
1918 - 1938 mm
Width
1796 mm
Height
1620 - 1621 mm
Height
1562 mm
Payload
415 - 545 kg
Payload
505 - 550 kg

Engine and Performance

Engine Type
Petrol MHEV, Diesel MHEV, Petrol
Engine Type
Petrol MHEV, Diesel, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
184 - 510 HP
Power HP
116 - 238 HP
Acceleration 0-100km/h
3.8 - 8.4 s
Acceleration 0-100km/h
6.5 - 10 s
Max Speed
213 - 250 km/h
Max Speed
200 - 250 km/h
Torque
300 - 700 Nm
Torque
200 - 450 Nm
Number of Cylinders
4 - 6
Number of Cylinders
4
Power kW
135 - 375 kW
Power kW
85 - 175 kW
Engine capacity
1995 - 2998 cm3
Engine capacity
1332 - 1991 cm3

General

Model Year
2023 - 2024
Model Year
2024 - 2025
CO2 Efficiency Class
F, G
CO2 Efficiency Class
E, D, F, B
Brand
BMW
Brand
Mercedes-Benz

BMW X4

The BMW X4: A Fusion of Performance and Elegance

The BMW X4 stands out as a striking Sports Activity Coupé (SAC) that seamlessly marries sportiness with elegance. With a design that captures attention and a performance that demands respect, the X4 is a testament to BMW's commitment to innovation and engineering excellence.

Power and Performance

The BMW X4 offers a remarkable range of engines, from the efficient 184 PS mild-hybrid petrol model to the exhilarating 510 PS X4 M Competition. All options offer the sophisticated xDrive all-wheel-drive system, ensuring optimal traction and handling across varied driving conditions. With a fuel consumption range from 6 to 10.7 L/100km, the X4 is engineered to deliver both power and efficiency.

Engine Technology and Efficiency

The X4 integrates state-of-the-art mild-hybrid technology across its petrol and diesel variants, improving fuel efficiency and providing a seamless driving experience. This technology supports the internal combustion engine during acceleration, thus reducing fuel consumption and lowering emissions. CO₂ emissions range from 156 to 244 g/km, adhering to BMW’s ongoing commitment toward sustainable mobility.

Cutting-edge Design and Comfort

The exterior of the BMW X4 is sculpted for aerodynamics and aesthetics, with its sporty lines complemented by a coupé-style roofline. Inside, the cabin is a sanctuary of luxury and technology, accommodating five passengers with comfort and sophistication. High-quality materials and masterful craftsmanship define the interior, offering an intuitive driver-centric layout.

Innovative Technologies and Features

Featuring the latest in BMW’s technological advancements, the X4 includes a digital cockpit, an advanced navigation system, and connectivity options to keep drivers informed and connected. Safety is paramount, with a suite of driver assistance systems available, such as lane departure warning and adaptive cruise control, delivering peace of mind on every journey.

Performance with Practicality

Beyond its athletic prowess, the BMW X4 offers practicality with a substantial 525-litre boot space and customizable rear seating to accommodate larger loads. A perfect balance of performance and everyday utility, the X4 is designed to meet the needs of drivers without compromise.

Conclusion: The BMW X4 Experience

The BMW X4 is more than just an SUV; it represents a dynamic driving experience with the practicality of daily use. Whether through its compelling design, innovative technology, or robust performance, the X4 reflects BMW's signature blend of luxury and thrill, making it a standout choice in the premium SUV market.

Mercedes B Class

A New Era of Compact Luxury: The Mercedes-Benz B-Class

The Mercedes-Benz B-Class represents a perfect blend of luxury, utility, and cutting-edge technology, standing as a testament to the brand’s commitment to innovation and class. This compact luxury MPV is tailored for motorists who seek practicality without compromising on performance and style.

Performance and Efficiency: A Comprehensive Overview

The new B-Class range comes with a selection of powertrains, including petrol mild-hybrids, diesels, and plug-in hybrids, ensuring a wide array of choices for every driving preference. The power output ranges from 116 to 238 PS, offering a harmonious balance of power and efficiency.

Among the exciting options, the plug-in hybrid variant stands out with a fuel consumption rate as low as 0.8 L/100km and an electric range of up to 83 km. The petrol and diesel engines offer impressive efficiency, with consumption ranging from 5.1 to 7.1 L/100km, catering to both environmental consciousness and driving pleasure.

Innovative Technology: Staying Ahead of the Curve

Inside the B-Class, drivers will find an array of technology designed to enhance the driving experience. The latest MBUX infotainment system comes with a high-resolution touchscreen, voice activation, and a suite of connectivity features, making each journey both intuitive and enjoyable.

Mercedes-Benz has also incorporated advanced driver-assistance systems, including adaptive cruise control and lane-keeping assist, to enhance safety and convenience. These features ensure that the B-Class not only keeps up with the demands of modern drivers but also anticipates them.

Design and Luxury: A Compact Model with Presence

The Mercedes-Benz B-Class has been designed to offer maximum interior comfort while maintaining a compact external profile. The vehicle’s aerodynamic shape is complemented by a stylish front fascia and distinctive body lines, giving it a dynamic yet elegant appearance.

Inside, the B-Class doesn't skimp on luxury. With a high-quality finish, ergonomic seating, and comprehensive climate control systems, it delivers a refined environment for driver and passengers alike, echoing the luxurious feel synonymous with the Mercedes-Benz brand.

Customisation and Price: Tailored to Individual Tastes

The B-Class provides ample customisation options across its variants. From Advanced to AMG Line, each offers a unique set of features and aesthetic touches, allowing buyers to tailor the vehicle to their personal tastes.

Pricing for the B-Class starts at €38,413 and can go up to €60,577, reflecting the range of configurations available. While some may see this as a premium investment, the comprehensive offering of features, efficiency, and luxury justifies the cost.

Conclusion: The Future of Compact Luxury is Here

The Mercedes-Benz B-Class remains a standout choice in the compact luxury segment, thanks to its combination of state-of-the-art technology, refined design, and performance efficiency. Whether you're considering practicality, luxury, or a bit of both, the B-Class is poised to meet your needs with aplomb.

The prices and data displayed are estimates based on German list prices and may vary by country. This information is not legally binding.