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BMW X4 vs smart #1 comparison

Compare performance (510 HP vs 368 HP), boot space and price (51,900 £ vs 40,700 £ ) at a glance. Find out which car is the better choice for you – BMW X4 or smart #1?

BMW X4 vs smart #1: Key differences

BMW X4

  • visibly more power
  • noticeably quicker 0–100 km/h
  • barely lighter
  • significantly more trunk space
details

smart #1

  • noticeably cheaper
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By Achim Sedelmaier

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

X4

Costs and Efficiency:

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

smart #1 is noticeably cheaper – starting at 40,700 £ , while the BMW X4 costs 51,900 £ . That’s a price difference of around 11,152 £.

#1

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 X4 offers visibly more power – delivering 510 HP compared to 368 HP. That’s roughly 142 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW X4 is noticeably quicker – completing the sprint in 3.8 s, while the smart #1 takes 4.9 s. That’s about 1.1 s quicker.

There’s also a difference in torque: the BMW X4 delivers clearly more torque with 700 Nm compared to 470 Nm. That’s about 230 Nm more.

X4

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, BMW X4 is barely lighter – 1,875 kg compared to 1,900 kg. The difference is around 25 kg.

Looking at boot space, the BMW X4 offers significantly more boot space – 525 L compared to 313 L. That’s a difference of about 212 L.

When it comes to payload, the BMW X4 carries markedly more – 545 kg compared to 425 kg. That’s a difference of about 120 kg.

Who wins the race in the data check?

The BMW X4 stands out in the key areas 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 £51,900
X4

BMW X4

  • Engine Type Petrol MHEV, Diesel MHEV, Petrol
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 184 - 510 HP
  • Consumption L/100km 6 - 10.7 L/100km
details

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BMW X4

The BMW X4 blends coupe-like styling with SUV practicality, giving you a striking profile that never lets you disappear into traffic. It feels planted and keen behind the wheel, and for buyers who crave personality without sacrificing everyday usability, it’s a compelling and slightly mischievous choice.

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smart #1

The Smart #1 feels like a breath of fresh air in the compact EV world, pairing playful styling with usable space and a cabin that punches above its size. It skips the fuss and delivers an easygoing, city-friendly driving experience with clever features that make it a sensible, slightly cheeky choice for everyday motoring.

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Costs and Consumption
Price
51,900 - 93,000 £
Price
40,700 £
Consumption L/100km
6 - 10.7 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
18.2 kWh/100km
Electric Range
-
Electric Range
400 km
Battery Capacity
-
Battery Capacity
-
co2
156 - 244 g/km
co2
0 g/km
Fuel tank capacity
65 - 68 L
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
5
Doors
-
Curb weight
1,875 - 2,095 kg
Curb weight
1,900 kg
Trunk capacity
525 L
Trunk capacity
313 L
Length
4,751 - 4,754 mm
Length
-
Width
1,918 - 1,938 mm
Width
1,822 mm
Height
1,620 - 1,621 mm
Height
-
Max trunk capacity
1,430 L
Max trunk capacity
-
Payload
415 - 545 kg
Payload
425 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV, Petrol
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
184 - 510 HP
Power HP
368 HP
Acceleration 0-100km/h
3.8 - 8.4 s
Acceleration 0-100km/h
4.9 s
Max Speed
213 - 250 km/h
Max Speed
-
Torque
300 - 700 Nm
Torque
470 Nm
Number of Cylinders
4 - 6
Number of Cylinders
-
Power kW
135 - 375 kW
Power kW
271 kW
Engine capacity
1,995 - 2,998 cm3
Engine capacity
-

General
Model Year
2,023 - 2,024
Model Year
2024
CO2 Efficiency Class
F, G
CO2 Efficiency Class
A
Brand
BMW
Brand
smart
Is the BMW X4 offered with different drivetrains?

The BMW X4 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.