In this comparison, Alpine A390 leads on family practicality and city driving, while the Polestar 4 Coupé leads on value for money and charging speed.
Choose the Alpine A390 if...
Choose the Polestar 4 Coupé if...
Our take
The Alpine A390 edges ahead overall, but it's close - check which categories matter most to you.
Too close to call
Too close to call
See the specification differences behind the verdict, with supporting figures for each advantage.
Compare the key specifications for your selected trims.
| Measure | Alpine A390GT 400ch | Polestar 4 CoupéRear motor |
|---|---|---|
| Price | £61,390 | £56,750 (better) |
| Official range | 345 miles | 385 miles (better) |
| Boot space | 532 L (better) | 526 L |
| 10-80% rapid charge | 25 min | Not available |
| 0-62 mph | 3.9 sec | Not available |
Size Comparison
Length
Width
Height
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Alpine A390GT 400ch | Polestar 4 CoupéRear motor |
|---|---|---|
| Length | 4,615 mm | 4,840 mm |
| Width (mirrors folded) | 1,885 mm (better) | 2,008 mm |
| Width with mirrors out | Not available | 2,139 mm |
| Height | 1,532 mm | 1,534 mm |
| Turning circle | 11 m (better) | 11.6 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 515 mm spare (better) | 392 mm spare |
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Alpine A390GT 400ch | Polestar 4 CoupéRear motor |
|---|---|---|
| Seats | 5 | 5 |
| ISOFIX child-seat points | 4 | Not available |
| Boot space (seats up) | 532 L (better) | 526 L |
| Specification | Alpine A390 GT 400ch | Polestar 4 Coupé Rear motor |
|---|---|---|
| Dimensions | ||
| Length | 4.62m | 4.84m+225mm |
| Width | 1.89m | 2.01m+123mm |
| Width (mirrors) | Not available | 2.14m |
| Height | 1.53m | 1.53m+2mm |
| Wheelbase | 2.79m | 3.00m+209mm |
| Ground Clearance | Not available | 166mm |
| Capacity | ||
| Boot (seats up) | 532L (better) | 526L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 11m (better) | 11.64m |
| Kerb Weight | 2,163kg (better) | 2,230kg |
| Electric | ||
| Battery | 89kWh | 100kWh (better) |
| Range (WLTP) | 345 mi | 385 mi (better) |
| Max DC Charge | 190kW | 200kW (better) |
| Pricing | ||
| UK MSRP | £61,390 | £56,750 (better) |
| Details | ||
| Body Style | SUV | Coupe SUV |
| Available | 2026+ | 2026+ |
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Alpine A390GT 400ch | Polestar 4 CoupéRear motor |
|---|---|---|
| Official range (WLTP) | 345 miles | 385 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 288 miles | 321 miles (better) |
| 10-80% rapid charge time | 25 min | Not available |
| Max rapid charge rate | 190 kW | 200 kW (better) |
| Home AC charging | 11 kW | 11 kW |
| Usable battery capacity | 89 kWh | 100 kWh (better) |
| Battery chemistry | NMC | Not available |
| Battery architecture | 400V | Not available |
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Alpine A390GT 400ch | Polestar 4 CoupéRear motor |
|---|---|---|
| 0-62 mph | 3.9 sec | Not available |
| Power | 294 kW (better) | 200 kW |
| Torque | 650 Nm | Not available |
| Drivetrain | AWD | RWD |
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.

Alpine A390
GT 400ch

Polestar 4 Coupé
Rear motor
No critic reviews gathered yet for this car.
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.
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.
Tested 2025
Tested 2025
Check the published battery warranty cover for each selected trim.
| Measure | Alpine A390GT 400ch | Polestar 4 CoupéRear motor |
|---|---|---|
| Battery warranty | Not available | 8 years |
| Battery warranty distance | Not available | 160,934 km |
Get a quote
Alpine A390
Polestar 4 Coupé
The Alpine A390 costs £4,640 more than the Polestar 4 Coupé. For that premium it adds 94 kW more power. The Polestar 4 Coupé is not just cheaper - it also offers 40 miles more WLTP range. On EVcarsguide's combined category scores, the Alpine A390 comes out ahead overall.
The Polestar 4 Coupé is £4,640 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 Polestar 4 Coupé comes out roughly £4,640 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
EVcarsguide estimates a real-world motorway range of about 288 miles for the Alpine A390 and 321 miles for the Polestar 4 Coupé - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Polestar 4 Coupé goes roughly 34 miles further between charging stops.
The Alpine A390 is the easier car for tight UK car parks: it is 123 mm narrower than the Polestar 4 Coupé. In a standard 2,400 mm bay that leaves about 515 mm of total clearance for the Alpine A390 and about 392 mm of total clearance for the Polestar 4 Coupé. The Alpine A390 also turns in a 0.6 m tighter circle, which helps with U-turns and multi-storey ramps.
Visit the full model pages for owner feedback, expert reviews, used prices and battery-health information.
Compare similarly sized and priced electric cars before finalising your shortlist.
More Alpine A390 comparisons
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EVcarsguide scores every verified EV on price, range, family use and running costs. Here is where this pair appears.
Explore other verified electric cars that may better suit the priorities this pair does not meet.
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .