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Audi Q6 e-tron vs Mercedes-Benz GLB
Selected trimquattroChange trim381 mi · 100 kWh · £68,975
Selected trim250+ Electric380 mi · 85 kWh · £46,100
At a glance
In this comparison, Audi Q6 e-tron leads on motorway range, while the Mercedes-Benz GLB leads on value for money, family practicality and charging speed.
Which should you choose?
Choose the Audi Q6 e-tron if...
- you do long motorway journeys - it has the best estimated real-world range at speed
Choose the Mercedes-Benz GLB if...
- you want the most for your money - best overall spec per pound
- you need the most family-friendly option with good safety and space
- you need the fastest charging of these options
- you need the best car for city driving and tight parking
How we reached the recommendation
Verdict
Our take
The Mercedes-Benz GLB leads in the most categories, but each car here has its strengths.
ValueMercedes-Benz
Audi
5.8
Mercedes-Benz
7
Motorway RangeAudi
Audi
7.9
Mercedes-Benz
6.3
FamilyMercedes-Benz
Audi
8
Mercedes-Benz
8.7
ChargingMercedes-Benz
Audi
8.2
Mercedes-Benz
9.1
Cost Per Mile
Audi
3.7
Mercedes-Benz
3.5
Too close to call
City DrivingMercedes-Benz
Audi
1.9
Mercedes-Benz
4
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Mercedes-Benz GLB
250+ Electric
- £22,875 cheaper
- 50 kW faster rapid charging
- 0.9 m tighter turning circle
- 2 more seats
Key specifications
Compare the key specifications for your selected trims.
| Measure | Audi Q6 e-tronquattro | Mercedes-Benz GLB250+ Electric |
|---|---|---|
| Price | £68,975 | £46,100 (better) |
| Official range | 381 miles (better) | 380 miles |
| Boot space | 526 L | 540 L (better) |
| 10-80% rapid charge | 22 min | 20 min (better) |
| 0-62 mph | 5.9 sec (better) | 7.4 sec |
Size Comparison
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Audi Q6 e-tron
Mercedes-Benz GLB
Length
Audi Q6 e-tron4,771mm
Mercedes-Benz GLB4,732mm-39mm
Width
Audi Q6 e-tron1,939mm
Mercedes-Benz GLB1,861mm-78mm
Height
Audi Q6 e-tron1,685mm-2mm
Mercedes-Benz GLB1,687mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Audi Q6 e-tronquattro | Mercedes-Benz GLB250+ Electric |
|---|---|---|
| Length | 4,771 mm | 4,732 mm |
| Width (mirrors folded) | 1,939 mm | 1,861 mm (better) |
| Width with mirrors out | 2,193 mm | 2,029 mm (better) |
| Height | 1,685 mm | 1,687 mm |
| Turning circle | 12.1 m | 11.2 m (better) |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 461 mm spare | 539 mm spare (better) |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Audi Q6 e-tronquattro | Mercedes-Benz GLB250+ Electric |
|---|---|---|
| Seats | 5 | 7 (better) |
| Boot space (seats up) | 526 L | 540 L (better) |
| Boot space (seats down) | 1529 L | Not available |
| Frunk | Not available | 127 L |
| Towing capacity (braked) | 2,000 kg (better) | 1,500 kg |
How each stacks up
Percentile ranks against UK EVs of the same body style.
Audi Q6 e-tron
- 381 mile WLTP range, longer than 90% of SUVs we track.
- Peak DC charging of 270 kW, faster than 85% of SUVs in our catalogue.
- Braked towing capacity of 2,000 kg, a stronger tow rating than 80% of SUVs we track.
Mercedes-Benz GLB
- A 127 L frunk, one of 4 of 232 UK EVs in our catalogue with a front boot of 127 L or more.
- 380 mile WLTP range, longer than 90% of SUVs we track.
- Peak DC charging of 320 kW, faster than 90% of SUVs in our catalogue.
Full specifications
| Specification |  Audi Q6 e-tron quattro |  Mercedes-Benz GLB 250+ Electric |
|---|---|---|
| Dimensions | ||
| Length | 4.77m | 4.73m-39mm |
| Width | 1.94m | 1.86m-78mm |
| Width (mirrors) | 2.19m | 2.03m-164mm |
| Height | 1.69m | 1.69m+2mm |
| Wheelbase | 2.89m | 2.89m-1mm |
| Capacity | ||
| Boot (seats up) | 526L | 540L (better) |
| Boot (seats down) | 1529L | Not available |
| Frunk | Not available | 127L |
| Seats | 5 | 7 (better) |
| Practicality | ||
| Turning Circle | 12.1m | 11.2m (better) |
| Kerb Weight | 2,150kg (better) | 2,270kg |
| Towing Capacity | 2,000kg (better) | 1,500kg |
| Electric | ||
| Battery | 100kWh (better) | 85kWh |
| Range (WLTP) | 381 mi (better) | 380 mi |
| Max DC Charge | 270kW | 320kW (better) |
| Pricing | ||
| UK MSRP | £68,975 | £46,100 (better) |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2024+ | 2026+ |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Audi Q6 e-tronquattro | Mercedes-Benz GLB250+ Electric |
|---|---|---|
| Official range (WLTP) | 381 miles (better) | 380 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 318 miles (better) | 268 miles |
| 10-80% rapid charge time | 22 min | 20 min (better) |
| Max rapid charge rate | 270 kW | 320 kW (better) |
| Home AC charging | 11 kW | 22 kW (better) |
| Energy consumption | Not available | 164 Wh/km |
| Usable battery capacity | 94.9 kWh (better) | 85 kWh |
| Battery chemistry | NMC | NMC |
| Battery architecture | 800V | 800V |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Audi Q6 e-tronquattro | Mercedes-Benz GLB250+ Electric |
|---|---|---|
| 0-62 mph | 5.9 sec (better) | 7.4 sec |
| Power | 285 kW (better) | 200 kW |
| Torque | 485 Nm (better) | 335 Nm |
| Drivetrain | AWD | RWD |
What the critics say
See how UK motoring publications rate each car in their road tests.
Audi Q6 e-tron
quattro
Mercedes-Benz GLB
250+ Electric
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
Audi Q6 e-tron
All 3 videos
Reviews and videos discuss each model overall; the specifications above apply to your selected trims.
Prices & deals
Calculate your real costs
For a useful running-cost comparison, factor in your mileage, charging access and current petrol or diesel car alongside the EV estimate.
Compare with petrol or diesel
Compare purchase price, energy, road tax and maintenance with a petrol or diesel alternative.
Calculate company-car tax
Work out monthly Benefit-in-Kind using current and future HMRC rates.
Cost per mile
Compare EV charging costs per mile with petrol and diesel using your charging options.
Check a lease quote
Assess the effective monthly cost alongside the list price and expected depreciation.
Safety & ownership confidence
Euro NCAP - Audi Q6 e-tron quattro
Tested 2024
Adult Occupant91%
Child Occupant92%
Vulnerable Road Users81%
Safety Assist80%
Full result on euroncap.com (opens in new tab)
Euro NCAP - Mercedes-Benz GLB 250+ Electric
Tested 2025
Adult Occupant92%
Child Occupant88%
Vulnerable Road Users78%
Safety Assist74%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | Audi Q6 e-tronquattro | Mercedes-Benz GLB250+ Electric |
|---|---|---|
| Battery warranty | 8 years | Not available |
| Battery warranty distance | 160,934 km | Not available |
Buying options
Get a quote
Audi Q6 e-tron
Used on AutoTraderLease deals
Mercedes-Benz GLB
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
Audi Q6 e-tron
- £44,1662026Car360View
- £60,2992026Car360View
- £49,9992025Car360View
Mercedes-Benz GLB
No active listings.
Frequently asked questions
Is the Audi Q6 e-tron worth the extra £22,875 over the Mercedes-Benz GLB?
The Audi Q6 e-tron costs £22,875 more than the Mercedes-Benz GLB. For that premium it adds 85 kW more power and a 1.5s quicker 0-62mph time. The Mercedes-Benz GLB is not just cheaper - it also offers 50 kW faster peak rapid charging and 2 more seats (7 versus 5). On EVcarsguide's combined category scores, the Mercedes-Benz GLB comes out ahead overall.
Which is cheaper to own over 5 years, the Audi Q6 e-tron or the Mercedes-Benz GLB?
The Mercedes-Benz GLB is £22,875 cheaper to buy. Running costs are almost identical - about £176 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Mercedes-Benz GLB comes out roughly £22,875 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
What are the Audi Q6 e-tron and Mercedes-Benz GLB like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 318 miles for the Audi Q6 e-tron and 268 miles for the Mercedes-Benz GLB - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Audi Q6 e-tron goes roughly 49 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 20-22 minutes.
Which is easier to park and drive in town, the Audi Q6 e-tron or the Mercedes-Benz GLB?
The Mercedes-Benz GLB is the easier car for tight UK car parks: it is 78 mm narrower than the Audi Q6 e-tron. In a standard 2,400 mm bay that leaves about 539 mm of total clearance for the Mercedes-Benz GLB and about 461 mm of total clearance for the Audi Q6 e-tron. The Mercedes-Benz GLB also turns in a 0.9 m tighter circle, which helps with U-turns and multi-storey ramps.
Which battery will hold up better as a used buy, the Audi Q6 e-tron or the Mercedes-Benz GLB?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Audi Q6 e-tron and 84% for the Mercedes-Benz GLB. That is close enough that capacity loss should not decide between them. Both use NMC-type cells, so for daily use keep the charge limit near 80% to slow degradation.
Go deeper on each car
Visit the full model pages for owner feedback, expert reviews, used prices and battery-health information.
Compare against other rivals
Compare similarly sized and priced electric cars before finalising your shortlist.
More Audi Q6 e-tron comparisons
More Mercedes-Benz GLB comparisons
See both cars in our rankings
EVcarsguide scores every verified EV on price, range, family use and running costs. Here is where this pair appears.
Where the Audi Q6 e-tron and Mercedes-Benz GLB rank among the best family EVsWhere the Audi Q6 e-tron and Mercedes-Benz GLB rank among the best electric SUVsWhere the Audi Q6 e-tron and Mercedes-Benz GLB rank among long-range EVsWhere the Audi Q6 e-tron and Mercedes-Benz GLB rank among the best motorway EVsWhere the Audi Q6 e-tron and Mercedes-Benz GLB rank among the best city EVsWhere the Audi Q6 e-tron and Mercedes-Benz GLB rank among the cheapest EVs to run
If neither is quite right
Explore other verified electric cars that may better suit the priorities this pair does not meet.
Further reading
Explore buying and ownership guides to help you choose between these electric cars.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .