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Mercedes A Class vs smart #3 comparison
Compare performance (421 HP vs 428 HP), boot space and price (32,600 £ vs 34,700 £ ) at a glance. Find out which car is the better choice for you – Mercedes A Class or smart #3?
A Class
Costs and Efficiency:
Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.
Mercedes A Class is very slightly cheaper – starting at 32,600 £ , while the smart #3 costs 34,700 £ . That’s a price difference of around 2,137 £.
As for electric range, the smart #3 offers clearly more range – reaching up to 455 km, about 370 km more than the Mercedes A Class.
#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 marginally 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 marginally quicker – completing the sprint in 3.7 s, while the Mercedes A Class takes 3.9 s. That’s about 0.2 s quicker.
Looking at top speed, the Mercedes A Class is moderately faster – reaching 225 km/h, while the smart #3 tops out at 180 km/h. The difference is around 45 km/h.
There’s also a difference in torque: the smart #3 delivers slightly more torque with 584 Nm compared to 500 Nm. That’s about 84 Nm more.
A Class
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 A Class is clearly lighter – 1,440 kg compared to 1,780 kg. The difference is around 340 kg.
Looking at boot space, the smart #3 offers marginally more boot space – 370 L compared to 350 L. That’s a difference of about 20 L.
For maximum load capacity, the smart #3 offers barely more capacity – up to 1,160 L, about 35 L more than the Mercedes A Class.
When it comes to payload, the Mercedes A Class carries only slightly more – 485 kg compared to 450 kg. That’s a difference of about 35 kg.
Who wins the race in the data check?
The smart #3 is far 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 £34,700
smart #3
Mercedes A Class
smart #3
Costs and Consumption
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Engine and Performance
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Dimensions and Body
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Mercedes A Class
The Mercedes A‑Class arrives as a compact charmer that dresses premium materials and a cockpit full of screens in a tidy, city-friendly package, delivering surprising agility and poise. For buyers who want a luxury badge, clever tech and a car that's equally happy in tight streets or on a spirited country run, the A‑Class offers a grown-up feel with a cheeky streak.
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 A Class
smart #3
Costs and Consumption |
|
|---|---|
|
Price
32,600 - 66,500 £
|
Price
34,700 - 45,800 £
|
|
Consumption L/100km
2.3 - 9 L/100km
|
Consumption L/100km
-
|
|
Consumption kWh/100km
-
|
Consumption kWh/100km
16.3 - 17.6 kWh/100km
|
|
Electric Range
85 km
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Electric Range
325 - 455 km
|
|
Battery Capacity
12.9 kWh
|
Battery Capacity
47 - 62 kWh
|
|
co2
53 - 205 g/km
|
co2
0 g/km
|
|
Fuel tank capacity
35 L
|
Fuel tank capacity
-
|
Dimensions and Body |
|
|---|---|
|
Body Type
Hatchback
|
Body Type
SUV
|
|
Seats
5
|
Seats
5
|
|
Doors
5
|
Doors
5
|
|
Curb weight
1,440 - 1,695 kg
|
Curb weight
1,780 - 1,910 kg
|
|
Trunk capacity
310 - 350 L
|
Trunk capacity
370 L
|
|
Length
4,428 mm
|
Length
4,400 mm
|
|
Width
1,796 - 1,850 mm
|
Width
1,844 mm
|
|
Height
1,423 mm
|
Height
1,556 mm
|
|
Max trunk capacity
1,125 L
|
Max trunk capacity
1,160 L
|
|
Payload
450 - 485 kg
|
Payload
419 - 450 kg
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Engine and Performance |
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|---|---|
|
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel, Petrol
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Engine Type
Electric
|
|
Transmission
Automatic
|
Transmission
Automatic
|
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Transmission Detail
Dual-Clutch Automatic
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Transmission Detail
Reduction Gearbox
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Drive Type
Front-Wheel Drive, All-Wheel Drive
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Drive Type
Rear-Wheel Drive, All-Wheel Drive
|
|
Power HP
116 - 421 HP
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Power HP
272 - 428 HP
|
|
Acceleration 0-100km/h
3.9 - 9.7 s
|
Acceleration 0-100km/h
3.7 - 5.8 s
|
|
Max Speed
225 km/h
|
Max Speed
180 km/h
|
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Torque
200 - 500 Nm
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Torque
343 - 584 Nm
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Number of Cylinders
4
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Number of Cylinders
-
|
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Power kW
85 - 310 kW
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Power kW
200 - 315 kW
|
|
Engine capacity
1,332 - 1,991 cm3
|
Engine capacity
-
|
General |
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|---|---|
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Model Year
2,024 - 2,025
|
Model Year
2,023 - 2,025
|
|
CO2 Efficiency Class
B, D, E, G
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CO2 Efficiency Class
A
|
|
Brand
Mercedes-Benz
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Brand
smart
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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.