How much does the BYD Dolphin (Standard) cost to own in Japan?
The BYD Dolphin (Standard) starts at ¥3,630,000. Own it for 5 years in Japan and it comes to about ¥4,295,432 — ¥71,591 per month, or ¥107 per km — including depreciation, charging, maintenance, insurance, shaken inspection and automobile tax, and financing. As of 2026/07/01.
CEV補助金 (national CEV purchase subsidy), FY2026: up to about ¥850,000 from the national government (METI / Next Generation Vehicle Promotion Center) when you buy a new EV — the amount varies by model and by how far the manufacturer supports charging infrastructure and servicing. Plug-in hybrids get a reduced amount; hybrids and petrol cars do not qualify. The budget is capped and applications can close partway through the fiscal year. There is a mandatory holding period (in principle 4 years) — sell early and you may have to repay the subsidy. Not every buyer or model qualifies — which is why we show the subsidy separately and have not folded it into the totals above. Source: METI / Next Generation Vehicle Promotion Center (NeV), as of . Check eligible models and the remaining budget before you buy.
BYD Dolphin (Standard) · Japan · 5 years (estimate)¥4,295,432 total · ¥71,591/mo · ¥107/km
Where the money goes
| Cost component | Electric · BYD Dolphin | Hybrid · Toyota Aqua |
|---|---|---|
| Depreciation (estimated) | ¥2,541,000 (59%) | ¥1,148,400 (44%) |
| Charging / fuel | ¥247,295 (6%) | ¥202,402 (8%) |
| ↳ of which charging loss | 12% (~¥29,675) | — |
| Maintenance | ¥125,000 (3%) | ¥212,500 (8%) |
| Insurance | ¥350,000 (8%) | ¥350,000 (13%) |
| Financing interest | ¥682,137 (16%) | ¥371,818 (14%) |
| Registration & fees | ¥350,000 (8%) | ¥350,000 (13%) |
| Total cost of ownership | ¥4,295,432 | ¥2,635,120 |
BYD Dolphin (Standard) — Price and specs
- Purchase price
- ¥3,630,000MSRP
- Drivetrain
- Electric
- Consumption
- 13.5 kWh/100kmWLTC
- Range
- 400 kmWLTC
- Electricity price
- 31 円/kWhMETI
- Annual distance (assumed)
- 8,000 kmJapan
Cost to charge the BYD Dolphin (Standard) at home
Charging the BYD Dolphin (Standard) at home runs about ¥476 per 100 km — versus about ¥1,189 for a typical 7 L/100 km petrol car over the same distance, so electricity is markedly cheaper. Home charging only, with the ~12% AC charging loss already included; public DC fast-charging is billed per session by each network — often 2–3× the home rate — and isn't in these figures.
- Per 100 km at home
- ¥47613.5 kWh/100km + 12% charging loss × ¥31/kWh
- A typical 7 L/100 km petrol car
- ¥1,189/100kmat petrol ¥170/L — for comparison
BYD Dolphin (Standard) · EV running-cost calculator for Japan