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Mercedes GLA vs smart #3 comparison
Compare performance (421 HP vs 428 HP), boot space and price (38,800 £ vs 34,700 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLA or smart #3?
Mercedes GLA vs smart #3: Key differences
All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.
GLA
Costs and Efficiency:
Looking at overall running costs, both models reveal some interesting differences in everyday economy.
smart #3 is a bit cheaper – starting at 34,700 £ , while the Mercedes GLA costs 38,800 £ . That’s a price difference of around 4,131 £.
As for electric range, the smart #3 offers significantly more range – reaching up to 455 km, about 381 km more than the Mercedes GLA.
#3
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 smart #3 offers only slightly more power – delivering 428 HP compared to 421 HP. That’s roughly 7 HP more horsepower.
When accelerating from 0 to 100 km/h, the smart #3 is moderately quicker – completing the sprint in 3.7 s, while the Mercedes GLA takes 4.3 s. That’s about 0.6 s quicker.
Looking at top speed, the Mercedes GLA is somewhat faster – reaching 210 km/h, while the smart #3 tops out at 180 km/h. The difference is around 30 km/h.
There’s also a difference in torque: the smart #3 delivers moderately more torque with 584 Nm compared to 500 Nm. That’s about 84 Nm more.
GLA
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, Mercedes GLA is moderately lighter – 1,570 kg compared to 1,780 kg. The difference is around 210 kg.
Looking at boot space, the Mercedes GLA offers a bit more boot space – 435 L compared to 370 L. That’s a difference of about 65 L.
For maximum load capacity, the Mercedes GLA offers somewhat more capacity – up to 1,385 L, about 225 L more than the smart #3.
When it comes to payload, the Mercedes GLA carries only slightly more – 500 kg compared to 450 kg. That’s a difference of about 50 kg.
Who wins the race in the data check?
The smart #3 holds a decisive overall lead 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 £34,700
smart #3
Mercedes GLA
smart #3
Costs and Consumption
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View detailed analysis
Engine and Performance
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Dimensions and Body
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View detailed analysis
Mercedes GLA
The Mercedes GLA blends Mercedes style with compact crossover practicality, looking sharper than its size suggests while still feeling purposeful around town. Inside it serves up premium materials and tech-forward ergonomics, and the composed ride makes it an appealing pick for buyers who want luxury wrapped in a city-friendly package with a wink of adventurous spirit.
details
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
Mercedes GLA
smart #3
Costs and Consumption |
|
|---|---|
|
Price
38,800 - 75,300 £
|
Price
34,700 - 45,800 £
|
|
Consumption L/100km
2.9 - 9.5 L/100km
|
Consumption L/100km
-
|
|
Consumption kWh/100km
-
|
Consumption kWh/100km
16.3 - 17.6 kWh/100km
|
|
Electric Range
74 km
|
Electric Range
325 - 455 km
|
|
Battery Capacity
12.9 kWh
|
Battery Capacity
47 - 62 kWh
|
|
co2
66 - 216 g/km
|
co2
0 g/km
|
|
Fuel tank capacity
35 L
|
Fuel tank capacity
-
|
Dimensions and Body |
|
|---|---|
|
Body Type
SUV
|
Body Type
SUV
|
|
Seats
5
|
Seats
5
|
|
Doors
5
|
Doors
5
|
|
Curb weight
1,570 - 1,810 kg
|
Curb weight
1,780 - 1,910 kg
|
|
Trunk capacity
385 - 435 L
|
Trunk capacity
370 L
|
|
Length
4,412 mm
|
Length
4,400 mm
|
|
Width
1,834 - 1,849 mm
|
Width
1,844 mm
|
|
Height
1,616 mm
|
Height
1,556 mm
|
|
Max trunk capacity
1,385 L
|
Max trunk capacity
1,160 L
|
|
Payload
480 - 500 kg
|
Payload
419 - 450 kg
|
Engine and Performance |
|
|---|---|
|
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel, Petrol
|
Engine Type
Electric
|
|
Transmission
Automatic
|
Transmission
Automatic
|
|
Transmission Detail
Dual-Clutch Automatic
|
Transmission Detail
Reduction Gearbox
|
|
Drive Type
Front-Wheel Drive, All-Wheel Drive
|
Drive Type
Rear-Wheel Drive, All-Wheel Drive
|
|
Power HP
116 - 421 HP
|
Power HP
272 - 428 HP
|
|
Acceleration 0-100km/h
4.3 - 11 s
|
Acceleration 0-100km/h
3.7 - 5.8 s
|
|
Max Speed
210 km/h
|
Max Speed
180 km/h
|
|
Torque
230 - 500 Nm
|
Torque
343 - 584 Nm
|
|
Number of Cylinders
4
|
Number of Cylinders
-
|
|
Power kW
85 - 310 kW
|
Power kW
200 - 315 kW
|
|
Engine capacity
1,332 - 1,991 cm3
|
Engine capacity
-
|
General |
|
|---|---|
|
Model Year
2,024 - 2,025
|
Model Year
2,023 - 2,025
|
|
CO2 Efficiency Class
B, E, F, G
|
CO2 Efficiency Class
A
|
|
Brand
Mercedes-Benz
|
Brand
smart
|
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.