BYD Seal Extended Range cost to own in Hong Kong — the true 5-year total
The BYD Seal Extended Range starts at HK$421,740. Over 5 years, owning one (EV) costs about HK$432,525 in Hong Kong as of July 10, 2026 — HK$7,209/month, HK$8.65/km — including depreciation, charging (with the ~12% charging loss most calculators ignore), maintenance, insurance, financing and licence fee. That's HK$74,897 more than a comparable Toyota Noah HEV Signature over the same 5 years.
BYD Seal Extended Range incentives & grants
Hong Kong ended ALL EV first-registration-tax concessions on 31 Mar 2026 (previously HK$58,500 general / HK$172,500 One-for-One) — every EV price here already includes full marginal FRT (46%–132% brackets). What remains: e-PCs pay a lower annual licence fee (HK$2,114 vs HK$5,074 for a ≤1,500cc petrol car), which IS modeled in the totals. Source: HK Gov P2026022500288 (25 Feb 2026) · TD fee schedule.
BYD Seal Extended Range · Hong Kong · 5-year estimateHK$432,525 total · HK$7,209/mo · HK$8.65/km
Where the money goes
| Cost component | Electric · BYD Seal Extended Range | Hybrid · Toyota Noah HEV Signature |
|---|---|---|
| Depreciation (estimated) | HK$274,131 (63%) | HK$150,444 (42%) |
| Charging / fuel | HK$14,071 (3%) | HK$71,002 (20%) |
| ↳ of which charging loss | 12% (~HK$1,689) | — |
| Maintenance | HK$10,000 (2%) | HK$16,000 (4%) |
| Insurance | HK$45,000 (10%) | HK$32,500 (9%) |
| Financing interest | HK$78,753 (18%) | HK$62,312 (17%) |
| Registration & fees | HK$10,570 (2%) | HK$25,370 (7%) |
| Total cost of ownership | HK$432,525 | HK$357,628 |
BYD Seal Extended Range specs & assumptions
- Starting price
- HK$421,740manufacturer
- Powertrain
- Electric
- Efficiency
- 12.7 kWh/100km (NEDC-derived)WLTP/NEDC
- Range
- 650 kmWLTP/NEDC
- Hong Kong electricity
- 1.50HK$/kWhCLP / HK Electric
- Annual km (assumed)
- 10,000Hong Kong average
Compare the BYD Seal Extended Range against any car, your km & your scenario
What the numbers say
The BYD Seal Extended Range costs about HK$432,525 to own over 5 years in Hong Kong — HK$7,209/month, HK$8.65/km at 10,000 km/yr — and depreciation is the biggest line: HK$274,131, 63% of the total (as of July 10, 2026).
- The Toyota Noah HEV Signature wins decisively here — HK$74,897 cheaper over 5 years; at typical assumptions this isn't a close call.
- Only heavy drivers flip this one: the BYD Seal Extended Range needs more than about 22,000 km/yr to beat the Toyota Noah HEV Signature.
- Where the BYD Seal Extended Range's HK$432,525 actually goes: depreciation HK$274,131 (63%), financing interest HK$78,753 (18%), insurance HK$45,000 (10%), charging HK$14,071 (3%), registration & fees HK$10,570 (2%), maintenance HK$10,000 (2%).
- Per km, that is HK$5.48 of depreciation and HK$0.28 of charging, with HK$2.89 for everything else — HK$8.65/km all-in.
- Charging vs the fleet: at HK$14,071 over 5 years the BYD Seal Extended Range sits within HK$0 of the HK$14,071 median for the 7 EVs we price — nothing unusual either way.
What we assume for maintenance
Assumed HK$2,000/yr for an EV at 10,000 km/yr — about HK$10,000 of the 5-year total above. On this market's assumptions an EV runs about HK$2,000/yr less in maintenance than a petrol car (HK$2,000 vs HK$4,000). See the methodology for sources; adjustable in the calculator.
Cost to charge the BYD Seal Extended Range at home
The BYD Seal Extended Range runs about HK$21.65 per 100 km at home — versus about HK$222.88 for a typical 7 L/100km petrol car. Home charging only (the ~12% AC charging loss is 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
- HK$21.6512.7 kWh/100km + 12% charging loss × HK$1.50/kWh
- A typical 7 L/100km petrol car
- HK$222.88/100kmat HK$31.84/L — for comparison