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Audi A5 Sportback vs smart #3 comparison

Compare performance (639 HP vs 272 HP), boot space and price (40,200 £ vs 42,000 £ ) at a glance. Find out which car is the better choice for you – Audi A5 Sportback or smart #3?

Audi A5 Sportback vs smart #3: Key differences

Audi A5 Sportback

  • barely cheaper
  • clearly more power
  • clearly quicker 0–100 km/h
  • marginally lighter
  • somewhat more trunk space
details

smart #3

5 (1 Reviews)
rate
  • significantly 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

A5 Sportback

Costs and Efficiency:

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

Audi A5 Sportback is barely cheaper – starting at 40,200 £ , while the smart #3 costs 42,000 £ . That’s a price difference of around 1,791 £.

As for electric range, the smart #3 offers significantly more range – reaching up to 455 km, about 345 km more than the Audi A5 Sportback.

#3

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 Audi A5 Sportback offers clearly more power – delivering 639 HP compared to 272 HP. That’s roughly 367 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A5 Sportback is clearly 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 Audi A5 Sportback delivers significantly more torque with 825 Nm compared to 384 Nm. That’s about 441 Nm more.

A5 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 A5 Sportback is marginally lighter – 1,770 kg compared to 1,810 kg. The difference is around 40 kg.

Looking at boot space, the Audi A5 Sportback offers somewhat more boot space – 445 L compared to 370 L. That’s a difference of about 75 L.

When it comes to payload, the Audi A5 Sportback carries somewhat more – 530 kg compared to 450 kg. That’s a difference of about 80 kg.

Who wins the race in the data check?

The Audi A5 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 £40,200
A5 Sportback

Audi A5 Sportback

  • Engine Type Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
  • Transmission Automatic
  • Drive Type All-Wheel Drive, Front-Wheel Drive
  • Power HP 150 - 639 HP
  • Consumption L/100km 2 - 7.6 L/100km
  • Electric Range 84 - 110 km
details

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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi A5 Sportback

The Audi A5 Sportback dresses up sleek coupe proportions with the everyday sense of a practical hatchback, so you get striking looks without the compromises. Behind the wheel it balances poise and comfort with premium trimmings that make daily driving feel a little bit special — ideal for buyers who want style and substance in equal measure.

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Reviews Audi A5 Sportback

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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smart #3

Costs and Consumption
Price
40,200 - 91,000 £
Price
42,000 £
Consumption L/100km
2 - 7.6 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
16.3 kWh/100km
Electric Range
84 - 110 km
Electric Range
455 km
Battery Capacity
-
Battery Capacity
-
co2
45 - 172 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
1,770 - 2,430 kg
Curb weight
1,810 kg
Trunk capacity
331 - 445 L
Trunk capacity
370 L
Length
-
Length
-
Width
1,860 - 1,952 mm
Width
1,844 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
475 - 530 kg
Payload
450 kg

Engine and Performance
Engine Type
Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic, Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
All-Wheel Drive, Front-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
150 - 639 HP
Power HP
272 HP
Acceleration 0-100km/h
3.7 - 9.8 s
Acceleration 0-100km/h
5.8 s
Max Speed
-
Max Speed
-
Torque
280 - 825 Nm
Torque
384 Nm
Number of Cylinders
4 - 6
Number of Cylinders
-
Power kW
110 - 470 kW
Power kW
200 kW
Engine capacity
1,968 - 2,995 cm3
Engine capacity
-

General
Model Year
2,025 - 2,026
Model Year
2025
CO2 Efficiency Class
B, E, F, D
CO2 Efficiency Class
A
Brand
Audi
Brand
smart
What drivetrain options does the Audi A5 Sportback have?

The Audi A5 Sportback is available as All-Wheel Drive or Front-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.