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Audi A6 e-tron Sportback vs Mercedes B Class comparison

Compare performance (551 HP vs 238 HP), boot space and price (53,800 £ vs 33,100 £ ) at a glance. Find out which car is the better choice for you – Audi A6 e-tron Sportback or Mercedes B Class?

Audi A6 e-tron Sportback vs Mercedes B Class: Key differences

Audi A6 e-tron Sportback

  • clearly more power
  • significantly more electric range
  • considerably quicker 0–100 km/h
  • marginally more trunk space

Mercedes B Class

4.9 (5 Reviews)
rate
  • considerably cheaper
  • substantially lighter

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 Sportback

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

Mercedes B Class is considerably cheaper – starting at 33,100 £ , while the Audi A6 e-tron Sportback costs 53,800 £ . That’s a price difference of around 20,699 £.

As for electric range, the Audi A6 e-tron Sportback offers significantly more range – reaching up to 754 km, about 671 km more than the Mercedes B Class.

B Class

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 A6 e-tron Sportback offers clearly more power – delivering 551 HP compared to 238 HP. That’s roughly 313 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A6 e-tron Sportback is considerably quicker – completing the sprint in 3.9 s, while the Mercedes B Class takes 6.5 s. That’s about 2.6 s quicker.

Looking at top speed, the Audi A6 e-tron Sportback is barely faster – reaching 240 km/h, while the Mercedes B Class tops out at 223 km/h. The difference is around 17 km/h.

There’s also a difference in torque: the Audi A6 e-tron Sportback delivers substantially more torque with 855 Nm compared to 450 Nm. That’s about 405 Nm more.

A6 e-tron 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, Mercedes B Class is substantially lighter – 1,405 kg compared to 2,175 kg. The difference is around 770 kg.

Looking at boot space, the Audi A6 e-tron Sportback offers marginally more boot space – 502 L compared to 455 L. That’s a difference of about 47 L.

For maximum load capacity, the Mercedes B Class offers marginally more capacity – up to 1,440 L, about 110 L more than the Audi A6 e-tron Sportback.

When it comes to payload, the Mercedes B Class carries marginally more – 550 kg compared to 500 kg. That’s a difference of about 50 kg.

Who wins the race in the data check?

The Audi A6 e-tron 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 £53,800
A6 e-tron Sportback

Audi A6 e-tron Sportback

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 326 - 551 HP
  • Consumption kWh/100km : 13.7 - 16.3 kWh/100km
  • Electric Range : 572 - 754 km
details

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Costs and Consumption
View detailed analysis

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Audi A6 e-tron Sportback

The Audi A6 e-tron Sportback wraps futuristic electric technology in elegant, coupe-like proportions, so you arrive looking sharp without shouting for attention. Inside, refined materials and a calm, driver-focused layout make it a convincing choice for buyers who want quiet, effortless performance with a dash of everyday practicality — the kind of car that raises eyebrows without saying a word.

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A244494_medium
A244492_medium
A243215_medium

Reviews Audi A6 e-tron Sportback

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

Mercedes B Class

The Mercedes B-Class is a smart, grown-up compact people carrier that dresses everyday practicality in a near‑premium polish, perfect for buyers who want comfort and a classy badge without the theatrics. It won’t set your pulse racing on a back road, but it will make school runs, commutes and grocery hauls feel pleasantly civilized — a reliable, slightly posh companion for real life.

details
18C0947_011
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Reviews Mercedes B Class

4.9 (5 Reviews)
rate
Peter
5 Mar 2026, 05:51:19

My wife and I have been driving a Mercedes W247 200d for seven years now, with 93,000 km on the clock. The car is very comfortable even on long trips and economical. At the last service the pads of the electric parking brake were replaced; otherwise no repairs. We love this car.

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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Audi A6 e-tron Sportback
Mercedes B Class

Costs and Consumption
Price
53,800 - 98,700 £
Price
33,100 - 52,500 £
Consumption L/100km
-
Consumption L/100km
2.5 - 6.9 L/100km
Consumption kWh/100km
13.7 - 16.3 kWh/100km
Consumption kWh/100km
-
Electric Range
572 - 754 km
Electric Range
83 km
Battery Capacity
75.8 - 94.9 kWh
Battery Capacity
12.9 kWh
co2
0 g/km
co2
56 - 156 g/km
Fuel tank capacity
-
Fuel tank capacity
35 L

Dimensions and Body
Body Type
Hatchback
Body Type
MPV
Seats
5
Seats
5
Doors
5
Doors
5
Curb weight
2,175 - 2,400 kg
Curb weight
1,405 - 1,745 kg
Trunk capacity
502 L
Trunk capacity
405 - 455 L
Length
4,928 mm
Length
4,419 mm
Width
1,923 mm
Width
1,796 mm
Height
1,465 - 1,487 mm
Height
1,562 mm
Max trunk capacity
1,330 L
Max trunk capacity
1,440 L
Payload
470 - 500 kg
Payload
505 - 550 kg

Engine and Performance
Engine Type
Electric
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
326 - 551 HP
Power HP
116 - 238 HP
Acceleration 0-100km/h
3.9 - 6 s
Acceleration 0-100km/h
6.5 - 10 s
Max Speed
210 - 240 km/h
Max Speed
223 km/h
Torque
435 - 855 Nm
Torque
200 - 450 Nm
Number of Cylinders
-
Number of Cylinders
4
Power kW
240 - 405 kW
Power kW
85 - 175 kW
Engine capacity
-
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2,024
Model Year
2,024 - 2,025
CO2 Efficiency Class
A
CO2 Efficiency Class
B, D, E, F
Brand
Audi
Brand
Mercedes-Benz
Is the Audi A6 e-tron Sportback offered with different drivetrains?

The Audi A6 e-tron Sportback 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.