Quick Answer
Despite the shared name, these are different cars from different segments. The Dolphin Surf (from ~£18,650) is BYD’s city car — China’s Seagull, Europe’s cheapest credible EV. The Dolphin (from £26,195) is a full-size family hatchback with double the motorway ability. The £7,500+ gap buys real car: size, range, charging speed and refinement. Choose by your longest regular journey, not your average one.
They’re Not Trims of the Same Car
| Dolphin Surf | Dolphin | |
|---|---|---|
| Segment | City car (A/B) | Family hatch (C) |
| China-market name | Seagull | Dolphin |
| Length | ~4.0 m | 4.29 m |
| Also known as | Atto 1 (NZ/Asia), Dolphin Mini (LatAm) | Dolphin everywhere |
One car, four names worldwide — the full story is in our China vs export names guide.
Price and Range
| Dolphin Surf | Dolphin | |
|---|---|---|
| Entry price | ~£18,650 | £26,195 |
| Batteries | 30 / 43.2 kWh | 44.9 / 60.5 kWh |
| WLTP range | 137–200 miles | 211–265 miles |
| Real motorway range | ~100–140 miles | ~175–210 miles |
| Peak DC charge | 65–85 kW | 88 kW |
The Surf’s numbers are honest city-car numbers: brilliant for urban and suburban life, marginal for regular motorway hauls. The Dolphin Extended’s 60.5 kWh pack makes it a genuine one-car-household EV.
Practicality
- Dolphin Surf: four seats in most versions (five in some markets), ~300 L boot, tight rear for adults but fine for kids; city-perfect footprint for parking
- Dolphin: proper five seats, 345 L boot, adult-usable rear bench — a Golf-class cabin
Winner: Dolphin, by a full segment.
Where the Surf Wins
- Price — cheapest way into BYD ownership and one of the cheapest new EVs in Europe, full stop
- City running — smaller, lighter, easier to park, and urban range often exceeds 200 miles of stop-start driving
- Same Blade Battery LFP chemistry — 100% daily charging, same durability story as the bigger cars (Blade Battery explained)
- Proven at scale — as the Seagull, this is one of the best-selling EVs on earth, with an enormous China fleet history
Where the Dolphin Wins
- Motorway life — range, stability, refinement and 88 kW charging make distance travel routine rather than planned
- Family duty — rear seats and boot that fit actual family logistics
- Equipment depth — the Dolphin’s higher trims bring the rotating screen, better ADAS tuning and comfort features the Surf trims back to hit its price
Running Costs
Both are cheap to run; the Surf is cheaper still — lower insurance groups, less tyre (see tyre wear guide), fewer kWh per year. Both carry BYD’s standard warranty (details).
Verdict
Buy the Dolphin Surf if it’s a second car, a city car, or the budget is the budget — nothing else new at the price is this much car. Buy the Dolphin (ideally Extended) if it’s your only car or the week includes motorways — the extra £7,500 buys the difference between “capable in town” and “capable everywhere.” Cross-shop the MG4 before signing either way.