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Audi Q8 Sportback e-tron vs Smart #5
Selected trim50 quattro · 2023-25Change trim290 mi · 95 kWh · £70,300
At a glance
In this comparison, Audi Q8 Sportback e-tron stays competitive across the board, while the Smart #5 leads on value for money, family practicality and charging speed.
Which should you choose?
Choose the Smart #5 if...
- you want the most for your money - best overall spec per pound
- you have a family - it has the best combination of boot space, safety, and rear legroom
- 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 Smart #5 wins almost every category - it's the clear choice unless price is the deciding factor.
ValueSmart
Audi
4.2
Smart
6.4
Motorway Range
Audi
3
Smart
2.7
Too close to call
FamilySmart
Audi
6.3
Smart
9
ChargingSmart
Audi
4.3
Smart
5
City DrivingSmart
Audi
1.5
Smart
3.2
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Key specifications
Compare the key specifications for your selected trims.
| Measure | Audi Q8 Sportback e-tron50 quattro | Smart #5Pro |
|---|---|---|
| Price | £70,300 | £39,800 (better) |
| Official range | 290 miles (better) | 288 miles |
| Boot space | 528 L | 630 L (better) |
| 10-80% rapid charge | 31 min | 30 min (better) |
| 0-62 mph | 5.6 sec (better) | 6.9 sec |
Size Comparison
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Audi Q8 Sportback e-tron
Smart #5
Length
Audi Q8 Sportback e-tron4,915mm
Smart #54,695mm-220mm
Width
Audi Q8 Sportback e-tron1,935mm
Smart #51,920mm-15mm
Height
Audi Q8 Sportback e-tron1,619mm-86mm
Smart #51,705mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Audi Q8 Sportback e-tron50 quattro | Smart #5Pro |
|---|---|---|
| Length | 4,915 mm | 4,695 mm |
| Width (mirrors folded) | 1,935 mm | 1,920 mm (better) |
| Width with mirrors out | 2,189 mm | 2,169 mm (better) |
| Height | 1,619 mm | 1,705 mm |
| Turning circle | 12.2 m | Not available |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 465 mm spare | 480 mm spare (better) |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Audi Q8 Sportback e-tron50 quattro | Smart #5Pro |
|---|---|---|
| Seats | 5 | 5 |
| ISOFIX child-seat points | 2 | Not available |
| Boot space (seats up) | 528 L | 630 L (better) |
| Boot space (seats down) | 1567 L (better) | 1530 L |
| Frunk | Not available | 47 L |
| Towing capacity (braked) | 1,800 kg (better) | 1,600 kg |
How each stacks up
Percentile ranks against UK EVs of the same body style.
Audi Q8 Sportback e-tron
Not enough peers to make confident percentile claims.
Smart #5
- Boot space of 630 L is bigger than 90% of SUVs we track.
- One of 33 of 232 UK EVs in our catalogue with V2L (vehicle-to-load) support.
Full specifications
| Specification |  Audi Q8 Sportback e-tron 50 quattro |  Smart #5 Pro |
|---|---|---|
| Dimensions | ||
| Length | 4.92m | 4.70m-220mm |
| Width | 1.94m | 1.92m-15mm |
| Width (mirrors) | 2.19m | 2.17m-20mm |
| Height | 1.62m | 1.71m+86mm |
| Wheelbase | 2.93m | 2.90m-28mm |
| Ground Clearance | 172mm | 190mm+18mm |
| Capacity | ||
| Boot (seats up) | 528L | 630L (better) |
| Boot (seats down) | 1567L (better) | 1530L |
| Frunk | Not available | 47L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 12.2m | Not available |
| Kerb Weight | 2,585kg | 2,200kg (better) |
| Towing Capacity | 1,800kg (better) | 1,600kg |
| Electric | ||
| Battery | 95kWh (better) | 76kWh |
| Range (WLTP) | 290 mi (better) | 288 mi |
| Max DC Charge | 150kW | 150kW |
| Pricing | ||
| UK MSRP | £70,300 | £39,800 (better) |
| Details | ||
| Body Style | Coupe SUV | SUV |
| Available | 2023–2025 | 2025+ |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Audi Q8 Sportback e-tron50 quattro | Smart #5Pro |
|---|---|---|
| Official range (WLTP) | 290 miles (better) | 288 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 242 miles (better) | 202 miles |
| 10-80% rapid charge time | 31 min | 30 min (better) |
| Max rapid charge rate | 150 kW | 150 kW |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | Not available | 185 Wh/km |
| Usable battery capacity | 89 kWh (better) | 76 kWh |
| Battery chemistry | NMC | LFP |
| Battery architecture | 400V | 800V (better) |
| Heat pump | Standard (better) | Not standard |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Audi Q8 Sportback e-tron50 quattro | Smart #5Pro |
|---|---|---|
| 0-62 mph | 5.6 sec (better) | 6.9 sec |
| Power | 250 kW | 250 kW |
| Torque | 664 Nm (better) | 373 Nm |
| Drivetrain | AWD | RWD |
What the critics say
See how UK motoring publications rate each car in their road tests. One car has more review coverage than the other - we show that rather than guessing.
Audi Q8 Sportback e-tron
50 quattro
No critic reviews gathered yet for this car.
Smart #5
Pro
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
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 Q8 Sportback e-tron 50 quattro
Tested 2019
Adult Occupant91%
Child Occupant85%
Vulnerable Road Users71%
Safety Assist76%
Euro NCAP - Smart #5 Pro
Tested 2025
Adult Occupant88%
Child Occupant93%
Vulnerable Road Users84%
Safety Assist92%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | Audi Q8 Sportback e-tron50 quattro | Smart #5Pro |
|---|---|---|
| Battery warranty | 8 years | 8 years |
| Battery warranty distance | 160,000 km | Not available |
Buying options
Get a quote
Audi Q8 Sportback e-tron
Used on AutoTraderLease deals
Smart #5
Used on AutoTraderLease deals
Frequently asked questions
Is the Audi Q8 Sportback e-tron worth the extra £30,500 over the Smart #5?
The Audi Q8 Sportback e-tron costs £30,500 more than the Smart #5. For that premium it adds a 1.3s quicker 0-62mph time. The Smart #5 is not just cheaper - it also offers 102 litres more boot space. On EVcarsguide's combined category scores, the Smart #5 comes out ahead overall.
Which is cheaper to own over 5 years, the Audi Q8 Sportback e-tron or the Smart #5?
The Smart #5 is £30,500 cheaper to buy. Running costs are almost identical - about £200 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Smart #5 comes out roughly £30,620 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 Q8 Sportback e-tron and Smart #5 like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 242 miles for the Audi Q8 Sportback e-tron and 202 miles for the Smart #5 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Audi Q8 Sportback e-tron goes roughly 40 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 30-31 minutes.
Which is easier to park and drive in town, the Audi Q8 Sportback e-tron or the Smart #5?
The two are within 15 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 480 mm of total clearance for the Smart #5 and about 465 mm of total clearance for the Audi Q8 Sportback e-tron.
Which battery will hold up better as a used buy, the Audi Q8 Sportback e-tron or the Smart #5?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Audi Q8 Sportback e-tron and 90% for the Smart #5. That gives the Smart #5 a modest edge in retained real-world range. The Smart #5's LFP-type pack tolerates daily 100% charging, while the Audi Q8 Sportback e-tron's NMC-type pack lasts longest kept to about 80% for everyday use. Both batteries carry a 8-year manufacturer warranty.
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 Q8 Sportback e-tron comparisons
More Smart #5 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 Q8 Sportback e-tron and Smart #5 rank among the best family EVsWhere the Audi Q8 Sportback e-tron and Smart #5 rank among the best motorway EVsWhere the Audi Q8 Sportback e-tron and Smart #5 rank among the best city EVsWhere the Audi Q8 Sportback e-tron and Smart #5 rank among the cheapest EVs to runWhere the Audi Q8 Sportback e-tron and Smart #5 rank among EVs with the biggest bootsWhere the Audi Q8 Sportback e-tron and Smart #5 rank among Best Used Electric Cars Under £10,000 (UK)
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 .