Compare performance (659 HP vs 272 HP), boot space and price (99,300 £ vs 42,000 £ ) at a glance. Find out which car is the better choice for you – BMW i7 or smart #3?
All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.
Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.
smart #3 is significantly cheaper – starting at 42,000 £ , while the BMW i7 costs 99,300 £ . That’s a price difference of around 57,351 £.
In terms of energy consumption, the smart #3 is a bit more efficient: consuming 16.3 kWh/100km compared to 18.5 kWh/100km for the BMW i7. That’s a difference of about 2.2 kWh/100km.
As for electric range, the BMW i7 offers visibly more range – reaching up to 624 km, about 169 km more than the smart #3.
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 i7 offers significantly more power – delivering 659 HP compared to 272 HP. That’s roughly 387 HP more horsepower.
When accelerating from 0 to 100 km/h, the BMW i7 is significantly quicker – completing the sprint in 3.7 s, while the smart #3 takes 5.8 s. That’s about 2.1 s quicker.
There’s also a difference in torque: the BMW i7 delivers considerably more torque with 1,100 Nm compared to 384 Nm. That’s about 716 Nm more.
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, smart #3 is substantially lighter – 1,810 kg compared to 2,595 kg. The difference is around 785 kg.
Looking at boot space, the BMW i7 offers noticeably more boot space – 500 L compared to 370 L. That’s a difference of about 130 L.
When it comes to payload, the BMW i7 carries moderately more – 535 kg compared to 450 kg. That’s a difference of about 85 kg.
The BMW i7 is decisively 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.
The BMW i7 is a quietly imposing electric limousine that wraps advanced tech and traditional Bavarian comfort in a futuristic skin. For buyers after serene luxury with a mischievous streak, it pampers rear-seat occupants while reminding the driver that BMW still knows how to make a big car feel alive.
detailsThe 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.
detailsCosts and Consumption |
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|---|---|
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Price
99,300 - 157,200 £
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Price
42,000 £
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Consumption L/100km
-
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Consumption L/100km
-
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Consumption kWh/100km
18.5 - 20.8 kWh/100km
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Consumption kWh/100km
16.3 kWh/100km
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Electric Range
559 - 624 km
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Electric Range
455 km
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Battery Capacity
-
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Battery Capacity
-
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co2
0 g/km
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co2
0 g/km
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Fuel tank capacity
-
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Fuel tank capacity
-
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Dimensions and Body |
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|---|---|
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Body Type
Sedan
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Body Type
SUV
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Seats
5
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Seats
5
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Doors
-
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Doors
-
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Curb weight
2,595 - 2,770 kg
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Curb weight
1,810 kg
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Trunk capacity
500 L
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Trunk capacity
370 L
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Length
-
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Length
-
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Width
1,950 mm
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Width
1,844 mm
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Height
-
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Height
-
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Max trunk capacity
-
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Max trunk capacity
-
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Payload
480 - 535 kg
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Payload
450 kg
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Engine and Performance |
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|---|---|
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Engine Type
Electric
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Engine Type
Electric
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Transmission
Automatic
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Transmission
Automatic
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Transmission Detail
Reduction Gearbox
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Transmission Detail
Reduction Gearbox
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Drive Type
Rear-Wheel Drive, All-Wheel Drive
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Drive Type
Rear-Wheel Drive
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Power HP
455 - 659 HP
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Power HP
272 HP
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Acceleration 0-100km/h
3.7 - 5.5 s
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Acceleration 0-100km/h
5.8 s
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Max Speed
-
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Max Speed
-
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Torque
650 - 1,100 Nm
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Torque
384 Nm
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Number of Cylinders
-
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Number of Cylinders
-
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Power kW
335 - 485 kW
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Power kW
200 kW
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Engine capacity
-
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Engine capacity
-
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General |
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|---|---|
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Model Year
2,022 - 2,023
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Model Year
2025
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CO2 Efficiency Class
A
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CO2 Efficiency Class
A
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Brand
BMW
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Brand
smart
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