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Audi Q8 e-tron vs Mercedes SL Class comparison

Compare performance (503 HP vs 816 HP), boot space and price (65,100 £ vs 112,700 £ ) at a glance. Find out which car is the better choice for you – Audi Q8 e-tron or Mercedes SL Class?

Audi Q8 e-tron vs Mercedes SL Class: Key differences

Audi Q8 e-tron

  • substantially cheaper
  • substantially more electric range
  • significantly more trunk space
details

Mercedes SL Class

  • noticeably more power
  • clearly quicker 0–100 km/h
  • clearly lighter
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By Achim Sedelmaier

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

Q8 e-tron

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.

Audi Q8 e-tron is substantially cheaper – starting at 65,100 £ , while the Mercedes SL Class costs 112,700 £ . That’s a price difference of around 47,647 £.

As for electric range, the Audi Q8 e-tron offers substantially more range – reaching up to 595 km, about 583 km more than the Mercedes SL Class.

SL 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 Mercedes SL Class offers noticeably more power – delivering 816 HP compared to 503 HP. That’s roughly 313 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes SL Class is clearly quicker – completing the sprint in 2.9 s, while the Audi Q8 e-tron takes 4.5 s. That’s about 1.6 s quicker.

There’s also a difference in torque: the Mercedes SL Class delivers noticeably more torque with 1,420 Nm compared to 973 Nm. That’s about 447 Nm more.

Q8 e-tron

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Seats: Audi Q8 e-tron offers more seats – 5 vs 4.

In terms of curb weight, Mercedes SL Class is clearly lighter – 1,810 kg compared to 2,585 kg. The difference is around 775 kg.

Looking at boot space, the Audi Q8 e-tron offers significantly more boot space – 569 L compared to 240 L. That’s a difference of about 329 L.

When it comes to payload, the Audi Q8 e-tron carries markedly more – 595 kg compared to 375 kg. That’s a difference of about 220 kg.

Who wins the race in the data check?

The Audi Q8 e-tron stands well ahead of its rival 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 £65,100
Q8 e-tron

Audi Q8 e-tron

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 340 - 503 HP
  • Consumption kWh/100km 19.7 - 26.3 kWh/100km
  • Electric Range 456 - 595 km
Audi Q8 e-tron
Mercedes SL Class

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

Audi Q8 e-tron

The Audi Q8 e-tron wraps Audi’s usual premium polish into a quiet, composed electric SUV that feels refined and surprisingly effortless to drive. With a spacious, tech-forward cabin and understated road presence, it’s a practical yet stylish choice for buyers who want electric motoring without losing the dignity of a proper luxury SUV.

details

Mercedes SL Class

The Mercedes SL blends timeless elegance with a cheeky sense of occasion, its retractable roof turning any commute into a small celebratory parade. Behind the wheel it behaves like a grown-up sports car that prefers comfort and presence over headline-grabbing bravado, making it a tempting choice for buyers who want to arrive in style.

details
Audi Q8 e-tron
Mercedes SL Class

Costs and Consumption

Price
65,100 - 102,800 £
Price
112,700 - 219,300 £
Consumption L/100km
-
Consumption L/100km
9 - 13.6 L/100km
Consumption kWh/100km
19.7 - 26.3 kWh/100km
Consumption kWh/100km
-
Electric Range
456 - 595 km
Electric Range
12 km
Battery Capacity
89 - 106 kWh
Battery Capacity
-
co2
0 g/km
co2
206 - 309 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body

Body Type
SUV
Body Type
Roadster
Seats
5
Seats
4
Doors
5
Doors
-
Curb weight
2,585 - 2,725 kg
Curb weight
1,810 - 2,195 kg
Trunk capacity
528 - 569 L
Trunk capacity
110 - 240 L
Length
4,915 mm
Length
-
Width
1,937 - 1,994 mm
Width
1,915 mm
Height
1,617 - 1,683 mm
Height
-
Max trunk capacity
1,567 - 1,637 L
Max trunk capacity
-
Payload
515 - 595 kg
Payload
145 - 375 kg

Engine and Performance

Engine Type
Electric
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
340 - 503 HP
Power HP
435 - 816 HP
Acceleration 0-100km/h
4.5 - 6 s
Acceleration 0-100km/h
2.9 - 4.7 s
Max Speed
200 - 210 km/h
Max Speed
-
Torque
664 - 973 Nm
Torque
500 - 1,420 Nm
Number of Cylinders
-
Number of Cylinders
4 - 8
Power kW
250 - 370 kW
Power kW
320 - 600 kW
Engine capacity
-
Engine capacity
1,991 - 3,982 cm3

General

Model Year
2,023 - 2,024
Model Year
2025
CO2 Efficiency Class
A
CO2 Efficiency Class
G
Brand
Audi
Brand
Mercedes-Benz
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.