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BMW X6 vs smart #3 comparison

Compare performance (625 HP vs 272 HP), boot space and price (84,100 £ vs 42,000 £ ) at a glance. Find out which car is the better choice for you – BMW X6 or smart #3?

BMW X6 vs smart #3: Key differences

BMW X6

4.5 (2 Reviews)
rate
  • significantly more power
  • substantially quicker 0–100 km/h
  • clearly more trunk space
details

smart #3

5 (1 Reviews)
rate
  • considerably cheaper
  • noticeably 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:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

smart #3 is considerably cheaper – starting at 42,000 £ , while the BMW X6 costs 84,100 £ . That’s a price difference of around 42,094 £.

#3

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 X6 offers significantly more power – delivering 625 HP compared to 272 HP. That’s roughly 353 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW X6 is substantially quicker – completing the sprint in 3.9 s, while the smart #3 takes 5.8 s. That’s about 1.9 s quicker.

There’s also a difference in torque: the BMW X6 delivers clearly more torque with 750 Nm compared to 384 Nm. That’s about 366 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.

Both vehicles offer seating for 5 people.

In terms of curb weight, smart #3 is noticeably lighter – 1,810 kg compared to 2,240 kg. The difference is around 430 kg.

Looking at boot space, the BMW X6 offers clearly more boot space – 580 L compared to 370 L. That’s a difference of about 210 L.

When it comes to payload, the BMW X6 carries noticeably more – 695 kg compared to 450 kg. That’s a difference of about 245 kg.

Who wins the race in the data check?

The BMW X6 is clearly 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 £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

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BMW X6
smart #3

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

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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

smart #3

The Smart #3 turns the brand's cheeky city-car attitude into a grown-up compact SUV, pairing sleek styling with a surprisingly roomy, well-made interior. It's a brilliant pick for buyers who want electric ease without dullness — practical enough for daily life, but still lively enough to make parking and grocery runs feel a little fun.

details
smart-hashtag3-brabus-photon-orange-exterior-mallorca1
smart-hashtag3-brabus-photon-orange-exterior-mallorca13
smart-hashtag3-brabus-photon-orange-exterior-mallorca21
smart-hashtag3-brabus-photon-orange-interior-mallorca10
smart-hashtag3-brabus-photon-orange-interior-mallorca3
smart-hashtag3-premium-ceramic-cream-interior-mallorca7

Reviews smart #3

5 (1 Reviews)
rate
Ronny
16 Oct 2025, 13:10:59

Handsome design, packed with advanced driver‑assist technology and stellar performance — all at an attractive price. Highly recommended, this car!

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BMW X6
smart #3

Costs and Consumption
Price
84,100 - 147,300 £
Price
42,000 £
Consumption L/100km
7.2 - 12.7 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
16.3 kWh/100km
Electric Range
-
Electric Range
455 km
Battery Capacity
-
Battery Capacity
-
co2
188 - 288 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
2,240 - 2,445 kg
Curb weight
1,810 kg
Trunk capacity
580 L
Trunk capacity
370 L
Length
-
Length
-
Width
2,004 - 2,019 mm
Width
1,844 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
595 - 695 kg
Payload
450 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
298 - 625 HP
Power HP
272 HP
Acceleration 0-100km/h
3.9 - 6.1 s
Acceleration 0-100km/h
5.8 s
Max Speed
-
Max Speed
-
Torque
540 - 750 Nm
Torque
384 Nm
Number of Cylinders
6 - 8
Number of Cylinders
-
Power kW
219 - 460 kW
Power kW
200 kW
Engine capacity
2,993 - 4,395 cm3
Engine capacity
-

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
G
CO2 Efficiency Class
A
Brand
BMW
Brand
smart
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.