First, identify which BMW i3 you mean. BMW reused the name for a new, fully electric 3 Series sedan, distinct from the earlier compact i3 hatchback. The new sedan entered series production in Munich on 6 August 2026, with BMW describing autumn deliveries; regional availability should be checked with local dealers. This UK-focused shortlist compares alternatives to the new sedan and to the Polestar 2, rather than treating the two BMW generations as interchangeable.
The clearest shared candidates are the Tesla Model 3, Mercedes CLA Electric and BYD Seal: all are saloons identified in a UK comparison of new BMW i3 alternatives. The Volkswagen ID7 and BMW iX3 widen the choice to a larger liftback or estate and an SUV. These are options to investigate, not a universal ranking: the comparison is UK-specific, and current local prices, specifications and stock vary.
Which BMW i3 is this comparison about?
BMW’s new i3 is a Neue Klasse electric 3 Series sedan, not a refreshed version of the earlier compact i3 hatchback. BMW said series production began in Munich on 6 August 2026 after orders opened in June. Its launch announcement described deliveries in autumn 2026, but that does not establish availability in every market.
BMW quotes up to 900 km of WLTP range and DC charging up to 400 kW for the new i3. Those figures are provisional: BMW says binding WLTP values were not available for the specified i3 50 xDrive and notes that real-world range and charging depend on conditions, equipment and charging infrastructure. They should not be used as a guaranteed driving range or as a direct comparison with EPA figures.
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If you mean the earlier i3 hatchback, this list is not a like-for-like replacement guide. The UK comparison behind the shortlist concerns BMW’s newly announced electric 3 Series sedan. Body style and size are material differences, so choose candidates around the old car’s actual role and your needs rather than assuming the shared name makes the generations equivalent.
What are the best UK alternatives to consider?
A UK comparison published by Carwow on 29 March 2026 names five alternatives to the new BMW i3. Its descriptions provide a useful starting shortlist, but they are editorial characterizations, not standardized independent tests or current dealer quotations. The list also mixes body styles, so it is not a sedan-only comparison.
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| Model | Why it is on the shortlist | Trade-off or fit to check |
|---|---|---|
| Tesla Model 3 | Presented as a lower-priced saloon option, with a longer-range version also available. | The comparison describes the standard version as having shorter range than the new i3. Check the exact trim, current UK price and range; the source does not establish current dealer offers. |
| Mercedes CLA Electric | Presented as a long-range alternative in saloon form. | Compare the specific version’s price, usable space, charging capability and local availability; the comparison does not supply directly comparable current figures. |
| BYD Seal | A saloon choice with a performance version. | The comparison flags a price-and-range challenge against the Model 3. Confirm the particular trim and current specifications before judging value. |
| Volkswagen ID7 | A larger, comfort-oriented option, with an estate body style also available. | Its larger format and estate option may suit different space needs, but it is not a direct size or body-style match for a saloon. |
| BMW iX3 | BMW’s SUV alternative in the comparison. | Choose it as an SUV candidate, not as a sedan equivalent; compare its current local model, specifications and availability separately. |
The source does not provide a single, current set of competitor prices and ranges suitable for a numeric ranking. In particular, its 560-mile BMW i3 figure is an editorial-era comparison figure; it should not be silently equated with BMW’s provisional up-to-900-km WLTP claim. Ask dealers for the relevant model-year specification and compare range using the same test cycle.
How does the Polestar 2 compare?
Polestar UK’s specification page lists four Polestar 2 configurations. Its displayed prices and WLTP ranges show why a single headline figure can mislead: the stated maximum range belongs to the Long range Single motor, not every version. These are UK-market figures, not EPA ratings, and the page is dynamic, so verify the listing when shopping.
Rank #3
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| UK Polestar 2 configuration | Displayed price | Displayed WLTP range | Drive |
|---|---|---|---|
| Standard range Single motor | £45,210 | 344 miles | Rear-wheel drive |
| Long range Single motor | £49,210 | 409 miles | Rear-wheel drive |
| Long range Dual motor | £53,210 | 370 miles | All-wheel drive |
| Long range Dual motor with Performance pack | £58,210 | Up to 352 miles | All-wheel drive |
The five-car Carwow shortlist was assembled as alternatives to the new BMW i3, not as a separately tested ranking against the Polestar 2. Still, the Tesla Model 3, Mercedes CLA Electric and BYD Seal are saloon candidates for shoppers cross-shopping electric cars in that format; the ID7 and iX3 change the body-style proposition. The available evidence does not establish a winner over the Polestar 2 across price, range, comfort or ownership costs.
Polestar UK states an 8-year or 160,000-km battery warranty, with repair or replacement applying if battery state of health falls below 70% within that period. Warranty terms can vary by market and model year; check the terms attached to the car you are considering.
Rank #4
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Should you buy now or wait?
Consider buying now if the exact car is available locally
BMW’s production announcement is not proof that the new i3 is already available for delivery in every country. Confirm local order status, delivery timing, final specifications and price. Apply the same checks to every alternative, because the five-car comparison reflects a UK snapshot rather than live inventory.
Consider waiting if the Polestar 2 successor matters to you
On 18 February 2026, Polestar announced a completely new Polestar 2 successor planned for early 2027. That is a plan, not a guaranteed on-sale date, and Polestar has not supplied final successor specifications in that announcement. Polestar also reported that more than 190,000 Polestar 2 cars had been sold; that is a company-reported cumulative figure, not an independent measure of reliability or resale value.
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How to choose between the shortlist
- Set your market and budget. Compare cars sold in your country and model year. Put prices on the same basis—taxes, incentives, delivery costs and equipment included or excluded consistently—and treat online displayed prices as a starting point, not a confirmed quote.
- Match the body style to your use. The Model 3, CLA Electric and Seal are the saloon candidates in this shortlist. The ID7 is larger and has an estate option; the iX3 is an SUV. Compare passenger room and cargo capacity using the exact versions you can buy.
- Compare like-for-like range figures. Keep WLTP figures with WLTP and EPA figures with EPA. Do not turn BMW’s provisional WLTP claim into a real-world promise, or treat the Polestar 2’s longest-range trim as representative of its dual-motor variants.
- Check charging on the routes you drive. Peak charging power alone does not tell you how convenient a car is on a journey. Verify the car’s charging specification and the availability of compatible public charging where you travel; BMW’s 400-kW figure is an announced maximum, not a guarantee at every charger.
- Compare the actual offers and support. Check warranty coverage, service access, delivery timing and the written specification for each model-year and trim. The available UK shortlist does not establish current competitor warranties, service costs or dealer offers.
Sources and market scope
The BMW launch and provisional technical claims come from BMW Group’s 2026 announcements. Polestar variant specifications and battery warranty terms come from Polestar UK’s current specifications and service information, accessed 3 October 2026. The five alternatives and their comparative descriptions come from Carwow’s UK article dated 29 March 2026. Together, these sources support a UK-focused shortlist, not a worldwide availability list or a complete, current head-to-head test.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
