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BMW X6 vs Mercedes A Class comparison

Compare performance (625 HP vs 421 HP), boot space and price (83,600 £ vs 32,600 £ ) at a glance. Find out which car is the better choice for you – BMW X6 or Mercedes A Class?

BMW X6 vs Mercedes A Class: Key differences

BMW X6

5 (1 Reviews)
rate
  • markedly more power
  • markedly more trunk space

Mercedes A Class

  • clearly cheaper
  • substantially more efficient
  • substantially 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 A Class is clearly cheaper – starting at 32,600 £ , while the BMW X6 costs 83,600 £ . That’s a price difference of around 51,003 £.

Fuel consumption also shows a difference: the Mercedes A Class uses 2.3 L/100km and is substantially more efficient than the BMW X6 with 7.2 L/100km. The difference is about 4.9 L/100km.

A 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 markedly more power – delivering 625 HP compared to 421 HP. That’s roughly 204 HP more horsepower.

Both models accelerate almost equally fast – 3.9 s from 0 to 100 km/h.

Looking at top speed, the BMW X6 is barely faster – reaching 250 km/h, while the Mercedes A Class tops out at 225 km/h. The difference is around 25 km/h.

There’s also a difference in torque: the BMW X6 delivers noticeably more torque with 750 Nm compared to 500 Nm. That’s about 250 Nm more.

X6

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Both vehicles offer seating for 5 people.

In terms of curb weight, Mercedes A Class is substantially lighter – 1,440 kg compared to 2,240 kg. The difference is around 800 kg.

Looking at boot space, the BMW X6 offers markedly more boot space – 580 L compared to 350 L. That’s a difference of about 230 L.

For maximum load capacity, the BMW X6 offers markedly more capacity – up to 1,530 L, about 405 L more than the Mercedes A Class.

When it comes to payload, the BMW X6 carries markedly more – 695 kg compared to 485 kg. That’s a difference of about 210 kg.

Who wins the race in the data check?

The Mercedes A Class is far ahead overall 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 £32,600
A Class

Mercedes A Class

  • Engine Type : Plugin Hybrid, Petrol MHEV, Diesel, Petrol
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive
  • Power HP : 116 - 421 HP
  • Consumption L/100km : 2.3 - 9 L/100km
  • Electric Range : 85 km
details

Frequently compared as well

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BMW X6
Mercedes A 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
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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 A Class

The Mercedes A‑Class arrives as a compact charmer that dresses premium materials and a cockpit full of screens in a tidy, city-friendly package, delivering surprising agility and poise. For buyers who want a luxury badge, clever tech and a car that's equally happy in tight streets or on a spirited country run, the A‑Class offers a grown-up feel with a cheeky streak.

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Reviews Mercedes A Class

No reviews yet. Share your experience and help others decide.

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Mercedes A Class

Costs and Consumption
Price
83,600 - 146,400 £
Price
32,600 - 66,500 £
Consumption L/100km
7.2 - 12.7 L/100km
Consumption L/100km
2.3 - 9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
85 km
Battery Capacity
-
Battery Capacity
12.9 kWh
co2
188 - 288 g/km
co2
53 - 205 g/km
Fuel tank capacity
83 L
Fuel tank capacity
35 L

Dimensions and Body
Body Type
SUV
Body Type
Hatchback
Seats
5
Seats
5
Doors
5
Doors
5
Curb weight
2,240 - 2,445 kg
Curb weight
1,440 - 1,695 kg
Trunk capacity
580 L
Trunk capacity
310 - 350 L
Length
4,960 mm
Length
4,428 mm
Width
2,004 - 2,019 mm
Width
1,796 - 1,850 mm
Height
1,700 mm
Height
1,423 mm
Max trunk capacity
1,530 L
Max trunk capacity
1,125 L
Payload
595 - 695 kg
Payload
450 - 485 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel, Petrol
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 - 421 HP
Acceleration 0-100km/h
3.9 - 6.1 s
Acceleration 0-100km/h
3.9 - 9.7 s
Max Speed
250 km/h
Max Speed
225 km/h
Torque
540 - 750 Nm
Torque
200 - 500 Nm
Number of Cylinders
6 - 8
Number of Cylinders
4
Power kW
219 - 460 kW
Power kW
85 - 310 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, G
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.