BYD Sealion 6 (Dynamic Extended PHEV) cost to own in New Zealand — the true 5-year total
The BYD Sealion 6 (Dynamic Extended PHEV) starts at $59,990. Over 5 years, owning one (plug-in hybrid) costs about $67,322 in New Zealand as of July 9, 2026 — $1,122/month, $0.96/km — including depreciation, fuel, maintenance, insurance, financing and rego + road-user charges. That's $11,513 more than a comparable Toyota RAV4 Hybrid GXL AWD over the same 5 years.
BYD Sealion 6 (Dynamic Extended PHEV) incentives & grants
No EV purchase rebate in NZ (the Clean Car Discount ended Dec 2023), and EVs now pay Road User Charges (~NZ$76/1,000 km). Both are reflected honestly — the RUC is included in the totals above. Source: NZTA.
BYD Sealion 6 (Dynamic Extended PHEV) · NZ · 5-year estimate$67,322 total · $1,122/mo · $0.96/km
Where the money goes
| Cost component | Plug-in hybrid · BYD Sealion 6 | Hybrid · Toyota RAV4 Hybrid GXL |
|---|---|---|
| Depreciation (estimated) | $32,395 (48%) | $23,936 (43%) |
| Charging / fuel | $9,373 (14%) | $10,603 (19%) |
| ↳ of which charging loss | — | — |
| Maintenance | $3,997 (6%) | $3,752 (7%) |
| Insurance | $7,250 (11%) | $6,500 (12%) |
| Financing interest | $10,718 (16%) | $10,154 (18%) |
| Registration & fees | $3,590 (5%) | $865 (2%) |
| Total cost of ownership | $67,322 | $55,809 |
BYD Sealion 6 (Dynamic Extended PHEV) specs & assumptions
- Starting price
- $59,990manufacturer
- Powertrain
- Plug-in hybrid
- Efficiency
- 5.9 L/100km (blended)WLTP/EECA
- Range
- 90 kmWLTP/EECA
- NZ electricity
- 34.00c/kWhEA / MBIE
- Annual km (assumed)
- 14,000NZ average
Compare the BYD Sealion 6 (Dynamic Extended PHEV) against any car, your km & your scenario
What the numbers say
The BYD Sealion 6 (Dynamic Extended PHEV) costs about $67,322 to own over 5 years in New Zealand — $1,122/month, $0.96/km at 14,000 km/yr — and depreciation is the biggest line: $32,395, 48% of the total (as of July 9, 2026).
- The Toyota RAV4 Hybrid GXL AWD wins decisively here — $11,513 cheaper over 5 years; at typical assumptions this isn't a close call.
- On cost per month the BYD Sealion 6 (Dynamic Extended PHEV) ranks #8 of 18 midsize SUV models we track in NZ.
- Where the BYD Sealion 6 (Dynamic Extended PHEV)'s $67,322 actually goes: depreciation $32,395 (48%), financing interest $10,718 (16%), petrol $9,373 (14%), insurance $7,250 (11%), maintenance $3,997 (6%), registration & fees $3,590 (5%).
- Per km, that is $0.46 of depreciation and $0.13 of petrol, with $0.37 for everything else — $0.96/km all-in.
- Petrol vs the fleet: the BYD Sealion 6 (Dynamic Extended PHEV)'s 5-year petrol bill ($9,373) runs $2,477 below the $11,850 median of the 27 petrol and hybrid models we price at the same rates.
What we assume for maintenance
Assumed $799/yr for a plug-in hybrid at 14,000 km/yr — about $3,997 of the 5-year total above. On this market's assumptions an EV runs about $451/yr less in maintenance than a petrol car ($449 vs $900). See the methodology for sources; adjustable in the calculator.