In this comparison, Alpine A390 leads on city driving, while the BMW iX3 leads on value for money, motorway range and charging speed.
Choose the Alpine A390 if...
Choose the BMW iX3 if...
Our take
The BMW iX3 leads in the most categories, but each car here has its strengths.
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 | BMW iX340 |
|---|---|---|
| Price | £61,390 | £53,250 (better) |
| Official range | 345 miles | 395 miles (better) |
| Boot space | 532 L (better) | 520 L |
| 10-80% rapid charge | 25 min | 21 min (better) |
| 0-62 mph | 3.9 sec (better) | 6 sec |
Size Comparison
Length
Width
Height
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Alpine A390GT 400ch | BMW iX340 |
|---|---|---|
| Length | 4,615 mm | 4,782 mm |
| Width (mirrors folded) | 1,885 mm (better) | 1,895 mm |
| Width with mirrors out | Not available | 2,093 mm |
| Height | 1,532 mm | 1,635 mm |
| Turning circle | 11 m (better) | 12.1 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 515 mm spare (better) | 505 mm spare |
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Alpine A390GT 400ch | BMW iX340 |
|---|---|---|
| Seats | 5 | Not available |
| ISOFIX child-seat points | 4 | Not available |
| Boot space (seats up) | 532 L (better) | 520 L |
| Boot space (seats down) | Not available | 1750 L |
| Frunk | Not available | 58 L |
Percentile ranks against UK EVs of the same body style.
Alpine A390
Not enough peers to make confident percentile claims.
BMW iX3
| Specification | Alpine A390 GT 400ch | BMW iX3 40 |
|---|---|---|
| Dimensions | ||
| Length | 4.62m | 4.78m+167mm |
| Width | 1.89m | 1.90m+10mm |
| Width (mirrors) | Not available | 2.09m |
| Height | 1.53m | 1.64m+103mm |
| Wheelbase | 2.79m | 2.90m+106mm |
| Capacity | ||
| Boot (seats up) | 532L (better) | 520L |
| Boot (seats down) | Not available | 1750L |
| Frunk | Not available | 58L |
| Seats | 5 | Not available |
| Practicality | ||
| Turning Circle | 11m (better) | 12.1m |
| Kerb Weight | 2,163kg (better) | 2,200kg |
| Electric | ||
| Battery | 89kWh (better) | 82.6kWh |
| Range (WLTP) | 345 mi | 395 mi (better) |
| Max DC Charge | 190kW | 300kW (better) |
| Pricing | ||
| UK MSRP | £61,390 | £53,250 (better) |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2026+ | 2026+ |
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Alpine A390GT 400ch | BMW iX340 |
|---|---|---|
| Official range (WLTP) | 345 miles | 395 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 288 miles | 293 miles (better) |
| 10-80% rapid charge time | 25 min | 21 min (better) |
| Max rapid charge rate | 190 kW | 300 kW (better) |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | Not available | 146 Wh/km |
| Usable battery capacity | 89 kWh (better) | 82.6 kWh |
| Battery chemistry | NMC | Not available |
| Battery architecture | 400V | 800V (better) |
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Alpine A390GT 400ch | BMW iX340 |
|---|---|---|
| 0-62 mph | 3.9 sec (better) | 6 sec |
| Power | 294 kW (better) | 235 kW |
| Torque | 650 Nm (better) | 500 Nm |
| Drivetrain | AWD | RWD |
See how UK motoring publications rate each car in their road tests.

Alpine A390
GT 400ch

BMW iX3
40
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.
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Tested 2025
Tested 2026
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Alpine A390
BMW iX3
The Alpine A390 costs £8,140 more than the BMW iX3. For that premium it adds 59 kW more power and a 2.1s quicker 0-62mph time. The BMW iX3 is not just cheaper - it also offers 50 miles more WLTP range and 110 kW faster peak rapid charging. On EVcarsguide's combined category scores, the BMW iX3 comes out ahead overall.
The BMW iX3 is £8,140 cheaper to buy. Running costs are almost identical - about £160 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the BMW iX3 comes out roughly £8,220 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 293 miles for the BMW iX3 - effectively matched, and both well below their WLTP figures because sustained high speed is the hardest case for an EV. Both rapid-charge to 80% in a similar time, around 21-25 minutes.
The two are within 10 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 515 mm of total clearance for the Alpine A390 and about 505 mm of total clearance for the BMW iX3. The Alpine A390 also turns in a 1.1 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.
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EVcarsguide scores every verified EV on price, range, family use and running costs. Here is where this pair appears.
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Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .