BYD Dolphin Surf vs Hyundai Inster: which small EV suits UK life?

This comparison selects the UK Dolphin Surf Boost with the 43.2 kWh battery and Hyundai Inster 02 49 kWh MY27. Surf Active has the smaller battery, while Surf Comfort has a different power output and range. Inster 01,02, Cross and the 42 kWh versions are not interchangeable. Keep the exact version on every quote.

On 18 October 2026, the identified Lookers Surf Boost offer showed a cash price of £20,534.36, with terms running 7 October to 31 December 2026. That is the current cash field we read, rather than an older indexed summer amount or a monthly repayment. Ask for the final written total, colour, stock or factory-order timing and all offer conditions. We have not deducted an expired voucher or a finance contribution a second time.

Hyundai’s UK guide downloaded on the same day says pricing is effective from 1 October 2026. It separates MY26, available from stock only, from MY27. The MY27 Inster 02 49 kWh row lists £26,290 recommended OTR; Hyundai’s live trims page separately shows Inster 02 from £27,005. We have recorded that disagreement and cannot resolve your actual order price from the pages alone.

The two Hyundai references both sit above the identified BYD cash offer, by roughly £5,800 to £6,500. Those are different displayed price bases, not matched guaranteed transactions. Obtain an exact model-year delivered quote before deciding whether the Inster’s advantages are worth it. No additional grant, discount or finance benefit is assumed in those comparisons.

The Surf’s UK manufacturer dimensions are 3,990 mm long and 1,720 mm wide, excluding mirrors. Inster’s current technical guide gives 3,825 mm and 1,610 mm for the selected body, also excluding mirrors. That makes the Inster 165 mm shorter and 110 mm narrower on those measures. In a tight urban bay or garage, test the actual door-opening clearance and mirror position rather than assuming either dimension alone settles access.

BYD lists 308 litres of luggage capacity behind the seats. Inster 02 lists 238 to 351 litres with the rear seats up, reflecting its sliding seat arrangement. The larger Inster number is not free space with every passenger in exactly the same position. Move the seats through their usable range with the people who will sit there and see whether your load still fits.

Both current UK specifications used here list four seats. A household needing five should recognise that before comparing finance payments or luggage. Fit the child seats, set the front seats for the regular occupants and bring the pram or awkward bags. The most useful result is whether the actual car carries your household safely and comfortably, not which catalogue has the largest maximum.

Surf Boost is our value-first shortlist when that test works. Inster 02 earns a serious look when its narrower footprint or adjustable passenger/load trade-off makes a repeated daily task easier. We have not conducted that loading exercise ourselves, so the recommendation remains conditional on your practical check.

BYD’s current UK warranty update gives six years/150,000 km for basic vehicle cover. Hyundai publishes a five-year unlimited-mileage new-vehicle warranty, subject to its terms. A lower-mileage buyer keeping the car for six years has a different priority from someone covering a large distance annually. The headline years alone do not establish which policy is more useful for your use.

Battery cover is a separate policy with its own distance and capacity conditions. Obtain the exact booklets and warranty start date before paying a deposit, and request model-specific service and insurance quotes. We do not infer a reliability rate or equal repair convenience from the warranty wording.

The identified Surf Boost dealer technical table lists insurance group 14A. Hyundai’s October guide lists 21D for the selected MY27 Inster 02 49 kWh, while its older MY26 row gives 23D. These published references show why the version matters. They do not promise that a particular insurer will offer cover or that the lower group will produce your cheaper premium. Supply the exact delivery specification to insurers.

For a company car, use the correct current P11D and tax-year data through payroll or the fleet provider. The Hyundai guide retains historic tax-year column labels, so we have not treated a printed monthly tax example as your current tax bill. Personal purchase and company-car cost comparisons require different inputs.