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Audi A3 Sportback vs smart #3 comparison

Compare performance (400 HP vs 272 HP), boot space and price (27,000 £ vs 42,000 £ ) at a glance. Find out which car is the better choice for you – Audi A3 Sportback or smart #3?

Audi A3 Sportback vs smart #3: Key differences

Audi A3 Sportback

3.9 (1 Reviews)
rate
  • clearly cheaper
  • clearly more power
  • considerably quicker 0–100 km/h
  • clearly lighter
  • barely more trunk space
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smart #3

5 (1 Reviews)
rate
  • substantially more electric range
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

A3 Sportback

Costs and Efficiency:

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

Audi A3 Sportback is clearly cheaper – starting at 27,000 £ , while the smart #3 costs 42,000 £ . That’s a price difference of around 14,991 £.

As for electric range, the smart #3 offers substantially more range – reaching up to 455 km, about 314 km more than the Audi A3 Sportback.

#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 Audi A3 Sportback offers clearly more power – delivering 400 HP compared to 272 HP. That’s roughly 128 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A3 Sportback is considerably quicker – completing the sprint in 3.8 s, while the smart #3 takes 5.8 s. That’s about 2 s quicker.

There’s also a difference in torque: the Audi A3 Sportback delivers markedly more torque with 500 Nm compared to 384 Nm. That’s about 116 Nm more.

A3 Sportback

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, Audi A3 Sportback is clearly lighter – 1,360 kg compared to 1,810 kg. The difference is around 450 kg.

Looking at boot space, the Audi A3 Sportback offers barely more boot space – 380 L compared to 370 L. That’s a difference of about 10 L.

When it comes to payload, the Audi A3 Sportback carries only slightly more – 480 kg compared to 450 kg. That’s a difference of about 30 kg.

Who wins the race in the data check?

The Audi A3 Sportback 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 £27,000
A3 Sportback

Audi A3 Sportback

  • Engine Type : Petrol, Petrol MHEV, Diesel, Plugin Hybrid
  • Transmission : Manuel, Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive
  • Power HP : 116 - 400 HP
  • Consumption L/100km : 1.1 - 9.3 L/100km
  • Electric Range : 134 - 141 km
details

Frequently compared as well

Audi A3 Sportback
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Audi A3 Sportback
smart #3

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi A3 Sportback

The Audi A3 Sportback wraps premium materials and crisp German design into a practical hatchback package that makes daily driving feel smart rather than showy. It’s nimble in the city, composed on longer trips, and carries just enough swagger to satisfy buyers who want quality without shouting about it.

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Reviews Audi A3 Sportback

3.9 (1 Reviews)
rate

No reviews yet. Share your experience and help others decide.

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.

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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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Audi A3 Sportback
smart #3

Costs and Consumption
Price
27,000 - 92,900 £
Price
42,000 £
Consumption L/100km
1.1 - 9.3 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
16.3 kWh/100km
Electric Range
134 - 141 km
Electric Range
455 km
Battery Capacity
-
Battery Capacity
-
co2
25 - 211 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,360 - 1,685 kg
Curb weight
1,810 kg
Trunk capacity
280 - 380 L
Trunk capacity
370 L
Length
-
Length
-
Width
1,816 - 1,851 mm
Width
1,844 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
410 - 480 kg
Payload
450 kg

Engine and Performance
Engine Type
Petrol, Petrol MHEV, Diesel, Plugin Hybrid
Engine Type
Electric
Transmission
Manuel, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
116 - 400 HP
Power HP
272 HP
Acceleration 0-100km/h
3.8 - 10.1 s
Acceleration 0-100km/h
5.8 s
Max Speed
-
Max Speed
-
Torque
220 - 500 Nm
Torque
384 Nm
Number of Cylinders
4 - 5
Number of Cylinders
-
Power kW
85 - 294 kW
Power kW
200 kW
Engine capacity
1,498 - 2,480 cm3
Engine capacity
-

General
Model Year
2,025 - 2,026
Model Year
2025
CO2 Efficiency Class
D, F, E, G, B
CO2 Efficiency Class
A
Brand
Audi
Brand
smart
What drive types are available for the Audi A3 Sportback?

The Audi A3 Sportback is available as Front-Wheel Drive or 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.