VS

BMW X6 vs Mercedes SL Class comparison

Compare performance (625 HP vs 816 HP), boot space and price (84,100 £ vs 112,700 £ ) at a glance. Find out which car is the better choice for you – BMW X6 or Mercedes SL Class?

BMW X6 vs Mercedes SL Class: Key differences

BMW X6

4.5 (2 Reviews)
rate
  • noticeably cheaper
  • visibly more efficient
  • substantially more trunk space
details

Mercedes SL Class

  • clearly more power
  • noticeably quicker 0–100 km/h
  • visibly lighter
details

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

By Achim Sedelmaier

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.

BMW X6 is noticeably cheaper – starting at 84,100 £ , while the Mercedes SL Class costs 112,700 £ . That’s a price difference of around 28,619 £.

Fuel consumption also shows a difference: the BMW X6 uses 7.2 L/100km and is visibly more efficient than the Mercedes SL Class with 9 L/100km. The difference is about 1.8 L/100km.

SL Class

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the Mercedes SL Class offers clearly more power – delivering 816 HP compared to 625 HP. That’s roughly 191 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes SL Class is noticeably quicker – completing the sprint in 2.9 s, while the BMW X6 takes 3.9 s. That’s about 1 s quicker.

There’s also a difference in torque: the Mercedes SL Class delivers considerably more torque with 1,420 Nm compared to 750 Nm. That’s about 670 Nm more.

X6

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Seats: BMW X6 offers more seats – 5 vs 4.

In terms of curb weight, Mercedes SL Class is visibly lighter – 1,810 kg compared to 2,240 kg. The difference is around 430 kg.

Looking at boot space, the BMW X6 offers substantially more boot space – 580 L compared to 240 L. That’s a difference of about 340 L.

When it comes to payload, the BMW X6 carries significantly more – 695 kg compared to 375 kg. That’s a difference of about 320 kg.

Who wins the race in the data check?

The BMW X6 comes out clearly ahead 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 £84,100
X6

BMW X6

  • Engine Type Petrol MHEV, Diesel MHEV
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 298 - 625 HP
  • Consumption L/100km 7.2 - 12.7 L/100km
details

Frequently compared as well

BMW X1
BMW X6
VS
BMW X1 and BMW X6 go head-to-head: compare performance, space, features and price in one quick overview to see which model suits your daily driving, budget and lifestyle better. A clear, side-by-side look helps you make the smarter choice. || Unsure whether the BMW X1 or the BMW X6 is the better …
BMW X4
BMW X6
VS
In the realm of luxury SUVs, the BMW X4 and BMW X6 both capture attention with their distinctive coupe-like silhouettes, yet they cater to slightly different tastes. The BMW X4 presents a more compact and agile profile, ideal for urban driving, while the BMW X6 commands a stronger road presence …
BMW X6
Mercedes SL 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

4.5 (2 Reviews)
rate
marcus
9 Jun 2026, 16:23:07

top

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
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 SL Class

The Mercedes SL blends timeless elegance with a cheeky sense of occasion, its retractable roof turning any commute into a small celebratory parade. Behind the wheel it behaves like a grown-up sports car that prefers comfort and presence over headline-grabbing bravado, making it a tempting choice for buyers who want to arrive in style.

details
15C1119_012
15C1119_029
15C1119_120
15C1119_004

Reviews Mercedes SL Class

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

Frequently compared as well

BMW X5
BMW X6
VS
BMW X5 and BMW X6 go head-to-head: compare performance, space, features and price in one quick overview to see which model suits your daily driving, budget and lifestyle better. A clear, side-by-side look helps you make the smarter choice. || Unsure whether the BMW X5 or the BMW X6 is the better …
Mercedes AMG GT
Mercedes SL Class
VS
Mercedes AMG GT and Mercedes SL Class go head-to-head: compare performance, space, features and price in one quick overview to see which model suits your daily driving, budget and lifestyle better. A clear, side-by-side look helps you make the smarter choice. || Unsure whether the Mercedes AMG GT …
Mercedes SL Class
Ferrari SF90 Roadster
VS
Mercedes SL Class and Ferrari SF90 Roadster go head-to-head: compare performance, space, features and price in one quick overview to see which model suits your daily driving, budget and lifestyle better. A clear, side-by-side look helps you make the smarter choice. || Unsure whether the Mercedes …
BMW X6
Mercedes GLA
VS
BMW X6 and Mercedes GLA go head-to-head: compare performance, space, features and price in one quick overview to see which model suits your daily driving, budget and lifestyle better. A clear, side-by-side look helps you make the smarter choice. || Unsure whether the BMW X6 or the Mercedes GLA is …
BMW X6
BMW X7
VS
BMW X6 and BMW X7 go head-to-head: compare performance, space, features and price in one quick overview to see which model suits your daily driving, budget and lifestyle better. A clear, side-by-side look helps you make the smarter choice. || Unsure whether the BMW X6 or the BMW X7 is the better …
Mazda CX-80
Mercedes SL Class
VS
Mazda CX-80 and Mercedes SL Class go head-to-head: compare performance, space, features and price in one quick overview to see which model suits your daily driving, budget and lifestyle better. A clear, side-by-side look helps you make the smarter choice. || Unsure whether the Mazda CX-80 or the …
Mercedes SL Class
Bentley Continental Convertible
VS
Mercedes SL Class and Bentley Continental Convertible go head-to-head: compare performance, space, features and price in one quick overview to see which model suits your daily driving, budget and lifestyle better. A clear, side-by-side look helps you make the smarter choice. || Unsure whether the …
Mercedes SL Class
Porsche Panamera
VS
Mercedes SL Class and Porsche Panamera go head-to-head: compare performance, space, features and price in one quick overview to see which model suits your daily driving, budget and lifestyle better. A clear, side-by-side look helps you make the smarter choice. || Unsure whether the Mercedes SL …
BMW X6
Mercedes SL Class

Costs and Consumption
Price
84,100 - 147,300 £
Price
112,700 - 219,300 £
Consumption L/100km
7.2 - 12.7 L/100km
Consumption L/100km
9 - 13.6 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
12 km
Battery Capacity
-
Battery Capacity
-
co2
188 - 288 g/km
co2
206 - 309 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
Roadster
Seats
5
Seats
4
Doors
-
Doors
-
Curb weight
2,240 - 2,445 kg
Curb weight
1,810 - 2,195 kg
Trunk capacity
580 L
Trunk capacity
110 - 240 L
Length
-
Length
-
Width
2,004 - 2,019 mm
Width
1,915 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
595 - 695 kg
Payload
145 - 375 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
298 - 625 HP
Power HP
435 - 816 HP
Acceleration 0-100km/h
3.9 - 6.1 s
Acceleration 0-100km/h
2.9 - 4.7 s
Max Speed
-
Max Speed
-
Torque
540 - 750 Nm
Torque
500 - 1,420 Nm
Number of Cylinders
6 - 8
Number of Cylinders
4 - 8
Power kW
219 - 460 kW
Power kW
320 - 600 kW
Engine capacity
2,993 - 4,395 cm3
Engine capacity
1,991 - 3,982 cm3

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
G
CO2 Efficiency Class
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.