VS

BMW X6 vs Mercedes B Class comparison

Compare performance (625 HP vs 238 HP), boot space and price (83,600 £ vs 33,100 £ ) at a glance. Find out which car is the better choice for you – BMW X6 or Mercedes B Class?

BMW X6 vs Mercedes B Class: Key differences

BMW X6

5 (1 Reviews)
rate
  • significantly more power
  • considerably quicker 0–100 km/h
  • noticeably more trunk space

Mercedes B Class

4.9 (5 Reviews)
rate
  • significantly cheaper
  • significantly more efficient
  • significantly lighter

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

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

X6

Costs and Efficiency:

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

Mercedes B Class is significantly cheaper – starting at 33,100 £ , while the BMW X6 costs 83,600 £ . That’s a price difference of around 50,442 £.

Fuel consumption also shows a difference: the Mercedes B Class uses 2.5 L/100km and is significantly more efficient than the BMW X6 with 7.2 L/100km. The difference is about 4.7 L/100km.

B Class

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the BMW X6 offers significantly more power – delivering 625 HP compared to 238 HP. That’s roughly 387 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW X6 is considerably quicker – completing the sprint in 3.9 s, while the Mercedes B Class takes 6.5 s. That’s about 2.6 s quicker.

Looking at top speed, the BMW X6 is a bit faster – reaching 250 km/h, while the Mercedes B Class tops out at 223 km/h. The difference is around 27 km/h.

There’s also a difference in torque: the BMW X6 delivers visibly more torque with 750 Nm compared to 450 Nm. That’s about 300 Nm more.

X6

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 terms of curb weight, Mercedes B Class is significantly lighter – 1,405 kg compared to 2,240 kg. The difference is around 835 kg.

Looking at boot space, the BMW X6 offers noticeably more boot space – 580 L compared to 455 L. That’s a difference of about 125 L.

For maximum load capacity, the BMW X6 offers marginally more capacity – up to 1,530 L, about 90 L more than the Mercedes B Class.

When it comes to payload, the BMW X6 carries markedly more – 695 kg compared to 550 kg. That’s a difference of about 145 kg.

Who wins the race in the data check?

The Mercedes B Class holds a decisive overall lead in the objective data comparison.
This result only shows which model scores more points on paper – not which of the two cars feels right for you.

from £33,100
B Class

Mercedes B Class

  • Engine Type : Plugin Hybrid, Petrol MHEV, Diesel
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive
  • Power HP : 116 - 238 HP
  • Consumption L/100km : 2.5 - 6.9 L/100km
  • Electric Range : 83 km
details

Frequently compared as well

Mercedes B Class
Mercedes GLA
VS
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 …
Mercedes A Class
Mercedes B Class
VS
The Mercedes A‑Class is the sporty, tech‑savvy compact that thrills with sharp handling and a slick cockpit, while the Mercedes B‑Class trades a bit of attitude for towering practicality, roomier seats and a more useful boot. Choose the A‑Class if you want driving fun and style; pick the B‑Class if …
BMW X6
Mercedes B Class

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW X6

The BMW X6 wears its coupe-SUV looks like a tuxedo with oversized shoulders, turning everyday traffic into a catwalk whenever it glides past. It serves up sporty handling and a plush cabin with just enough practicality to keep daily life sane — perfect for buyers who crave drama without completely abandoning common sense.

details
P90390476_highRes_the-new-bmw-x6-xdriv
P90390471_highRes_the-new-bmw-x6-xdriv
P90390481_highRes_the-new-bmw-x6-xdriv
P90390482_highRes_the-new-bmw-x6-xdriv
P90390490_highRes_the-new-bmw-x6-xdriv

Reviews BMW X6

5 (1 Reviews)
rate
Ioana Annayse Simion
26 Jan 2026, 17:50:11

BMW IS BEST!!!!!!

How do you mainly use this car? (optional): Long-distance driver
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

Mercedes B Class

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.

details
18C0947_011
18C0947_009
18C0953_005
18C0953_035
18C0947_044

Reviews Mercedes B Class

4.9 (5 Reviews)
rate
Peter
5 Mar 2026, 05:51:19

My wife and I have been driving a Mercedes W247 200d for seven years now, with 93,000 km on the clock. The car is very comfortable even on long trips and economical. At the last service the pads of the electric parking brake were replaced; otherwise no repairs. We love this car.

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

Frequently compared as well

Mercedes B Class
Mercedes C Class Sedan
VS
The Mercedes B-Klasse and C-Klasse Limousine are distinct in their appeal, catering to different automotive preferences. The B-Klasse offers a spacious interior and versatility ideal for family-oriented buyers, while the C-Klasse Limousine crafts a more luxurious experience with its sleek design …
Mercedes B Class
VW T-Roc
VS
In the battle of compact versatility, the Mercedes B-Klasse stands out with its premium interior and advanced technology features, appealing to those seeking comfort and sophistication. On the other hand, the VW T-Roc offers a sporty design and agile handling, making it a fun choice for those who …
BMW 2 Series Active Tourer
Mercedes B Class
VS
Unsure whether the BMW 2 Series Active Tourer or the Mercedes B Class is the better match? Compare both models directly and discover differences in power, efficiency, comfort and value for money — all summarized in one easy view to support your decision.
Honda Jazz
Mercedes B Class
VS
The Honda Jazz 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.
Mercedes B Class
Nissan Qashqai
VS
The Mercedes B Class and Nissan Qashqai 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.
Mercedes B Class
Volvo XC40
VS
In a head-to-head comparison, the Mercedes B-Klasse and Volvo XC40 each present unique appeals to different driving preferences. The Mercedes B-Klasse, with its refined elegance and advanced technology, offers a smooth ride and functional versatility ideal for families. On the other hand, the Volvo …
Audi Q3
Mercedes B Class
VS
In the competitive landscape of compact luxury vehicles, the Audi Q3 stands out with its dynamic design and sporty performance, appealing to drivers seeking a spirited driving experience. On the other hand, the Mercedes B-Klasse offers a more practical approach, prioritizing spacious interiors and …
Mercedes B Class
Mercedes GLB
VS
When pitting the Mercedes B-Class against the Mercedes GLB, one quickly notices the distinct personalities of these two models. The B-Class offers a compact, agile experience perfect for urban environments, while the GLB combines that agility with a more spacious, SUV-like presence, making it ideal …
BMW X6
Mercedes B Class

Costs and Consumption
Price
83,600 - 146,400 £
Price
33,100 - 52,500 £
Consumption L/100km
7.2 - 12.7 L/100km
Consumption L/100km
2.5 - 6.9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
83 km
Battery Capacity
-
Battery Capacity
12.9 kWh
co2
188 - 288 g/km
co2
56 - 156 g/km
Fuel tank capacity
83 L
Fuel tank capacity
35 L

Dimensions and Body
Body Type
SUV
Body Type
MPV
Seats
5
Seats
5
Doors
5
Doors
5
Curb weight
2,240 - 2,445 kg
Curb weight
1,405 - 1,745 kg
Trunk capacity
580 L
Trunk capacity
405 - 455 L
Length
4,960 mm
Length
4,419 mm
Width
2,004 - 2,019 mm
Width
1,796 mm
Height
1,700 mm
Height
1,562 mm
Max trunk capacity
1,530 L
Max trunk capacity
1,440 L
Payload
595 - 695 kg
Payload
505 - 550 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel
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
298 - 625 HP
Power HP
116 - 238 HP
Acceleration 0-100km/h
3.9 - 6.1 s
Acceleration 0-100km/h
6.5 - 10 s
Max Speed
250 km/h
Max Speed
223 km/h
Torque
540 - 750 Nm
Torque
200 - 450 Nm
Number of Cylinders
6 - 8
Number of Cylinders
4
Power kW
219 - 460 kW
Power kW
85 - 175 kW
Engine capacity
2,993 - 4,395 cm3
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2,025
Model Year
2,024 - 2,025
CO2 Efficiency Class
G
CO2 Efficiency Class
B, D, E, F
Brand
BMW
Brand
Mercedes-Benz
What drivetrain options does the BMW X6 have?

The BMW X6 is available as All-Wheel Drive.

DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. The displayed prices are estimates based on German list prices, adjusted to the respective country’s VAT. Country-specific registration taxes are not included. This information is not legally binding.