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Audi A6 e-tron Avant vs smart #5 comparison

Compare performance (551 HP vs 646 HP), boot space and price (55,200 £ vs 39,300 £ ) at a glance. Find out which car is the better choice for you – Audi A6 e-tron Avant or smart #5?

Audi A6 e-tron Avant vs smart #5: Key differences

Audi A6 e-tron Avant

3.4 (3 Reviews)
rate
  • visibly more efficient
  • a bit more electric range
  • barely lighter

smart #5

4.9 (5 Reviews)
rate
  • significantly cheaper
  • a bit more power
  • barely quicker 0–100 km/h
  • markedly more trunk space

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

Here’s where it gets real: The technical differences in detail

A6 e-tron Avant

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

smart #5 is significantly cheaper – starting at 39,300 £ , while the Audi A6 e-tron Avant costs 55,200 £ . That’s a price difference of around 15,900 £.

In terms of energy consumption, the Audi A6 e-tron Avant is visibly more efficient: consuming 14.8 kWh/100km compared to 18.4 kWh/100km for the smart #5. That’s a difference of about 3.6 kWh/100km.

As for electric range, the Audi A6 e-tron Avant offers a bit more range – reaching up to 716 km, about 126 km more than the smart #5.

#5

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 #5 offers a bit more power – delivering 646 HP compared to 551 HP. That’s roughly 95 HP more horsepower.

When accelerating from 0 to 100 km/h, the smart #5 is barely quicker – completing the sprint in 3.8 s, while the Audi A6 e-tron Avant takes 3.9 s. That’s about 0.1 s quicker.

Looking at top speed, the Audi A6 e-tron Avant is somewhat faster – reaching 240 km/h, while the smart #5 tops out at 210 km/h. The difference is around 30 km/h.

There’s also a difference in torque: the Audi A6 e-tron Avant delivers moderately more torque with 855 Nm compared to 710 Nm. That’s about 145 Nm more.

A6 e-tron Avant

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 A6 e-tron Avant is barely lighter – 2,185 kg compared to 2,200 kg. The difference is around 15 kg.

Looking at boot space, the smart #5 offers markedly more boot space – 630 L compared to 502 L. That’s a difference of about 128 L.

For maximum load capacity, the smart #5 offers barely more capacity – up to 1,530 L, about 108 L more than the Audi A6 e-tron Avant.

When it comes to payload, the smart #5 carries very slightly more – 502 kg compared to 500 kg. That’s a difference of about 2 kg.

Who wins the race in the data check?

The smart #5 is slightly 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.

from £39,300
#5

smart #5

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 340 - 646 HP
  • Consumption kWh/100km : 18.4 - 19.9 kWh/100km
  • Electric Range : 465 - 590 km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi A6 e-tron Avant

The Audi A6 e-tron Avant wraps Audi's trademark refinement into a sleek electric estate that looks at home in the city or on the open road. Inside it's grown-up and tech-forward with practical packaging for family life, delivering a composed, confident drive that makes everyday hauling feel a bit more special and slightly futuristic.

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Reviews Audi A6 e-tron Avant

3.4 (3 Reviews)
rate

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

smart #5

The Smart #5 continues to build on the brand's legacy of compact and efficient urban vehicles, now infused with a more modern and stylish design. Its sleek appearance is complemented by a spacious interior, offering comfort without compromising its compact nature. This model is ideal for city dwellers seeking a blend of innovation, practicality, and style in their daily drives.

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Reviews smart #5

4.9 (5 Reviews)
rate
Stefan
31 Jan 2026, 22:25:16

I spent a weekend with the Brabus #5 and I’m thrilled! Extremely quiet, even at just under 220 km/h. Very good ride comfort, especially if, like me, you prefer a softer setup for better suspension comfort!
Brutal acceleration that only really hits from about 50 km/h and culminates in a 0–200 km/h sprint in 10.2 seconds… There are almost no cars up to roughly 1,000 hp that are faster!
The actual charging performance is, I believe, the best of any passenger car available in the EU (only Zeekr shows a little more on paper, but probably not in real life) — it charges at peaks up to 425 kW! 10–80% in 13 minutes and 5–100% in 28 minutes.
The fit and finish are in places better than the Mercedes E‑Class...

How do you mainly use this car? (optional): Long-distance driver
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Stefan
4 Dec 2025, 21:11:24

Apart from the hopefully soon improved/reduced chimes and the horrendously hard-to-reach mute for the speed warning, the car is really a knockout!
Very, very quiet, comfortable, extremely fast (Brabus version), great build quality, great equipment!

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Audi A6 e-tron Avant
smart #5

Costs and Consumption
Price
55,200 - 100,100 £
Price
39,300 - 52,200 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
14.8 - 17 kWh/100km
Consumption kWh/100km
18.4 - 19.9 kWh/100km
Electric Range
539 - 716 km
Electric Range
465 - 590 km
Battery Capacity
75.8 - 94.9 kWh
Battery Capacity
74.4 - 94 kWh
co2
0 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Estate
Body Type
SUV
Seats
5
Seats
5
Doors
5
Doors
5
Curb weight
2,185 - 2,410 kg
Curb weight
2,200 - 2,378 kg
Trunk capacity
502 L
Trunk capacity
630 L
Length
4,928 mm
Length
4,695 mm
Width
1,923 mm
Width
1,920 mm
Height
1,504 - 1,527 mm
Height
1,705 mm
Max trunk capacity
1,422 L
Max trunk capacity
1,530 L
Payload
470 - 500 kg
Payload
475 - 502 kg

Engine and Performance
Engine Type
Electric
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
326 - 551 HP
Power HP
340 - 646 HP
Acceleration 0-100km/h
3.9 - 6 s
Acceleration 0-100km/h
3.8 - 6.9 s
Max Speed
210 - 240 km/h
Max Speed
200 - 210 km/h
Torque
435 - 855 Nm
Torque
373 - 710 Nm
Number of Cylinders
-
Number of Cylinders
-
Power kW
240 - 405 kW
Power kW
250 - 475 kW
Engine capacity
-
Engine capacity
-

General
Model Year
2,024
Model Year
2,025
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
Audi
Brand
smart
What drivetrain options does the Audi A6 e-tron Avant have?

The Audi A6 e-tron Avant is available as Rear-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.