EVCostIQ

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Hyundai Ioniq 6 (77kWh RWD) vs Mazda CX-5 (petrol): 5-year cost to own (NZ)

By the EVCostIQ research desk · reviewed against our public methodology · every source dated on this page

Over 5 years in New Zealand (14,000 km/yr), as of July 1, 2026, the Mazda CX-5 (petrol) stays the cheaper car to own — about $56,577 vs $81,393 for the Hyundai Ioniq 6 (77kWh RWD), a $24,816 difference over 5 years.

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.

Cheaper to own over 5 years · NZMazda CX-5 (petrol) · $56,577 total · $24,816 less than the Hyundai Ioniq 6 (77kWh RWD)

Hyundai Ioniq 6 (77kWh RWD) vs Mazda CX-5 (petrol) — where the money goes

5-year total cost of ownership by component, by vehicle (NZD). Estimates; sources dated in the methodology.
Cost componentElectric · Hyundai Ioniq 6Petrol · Mazda CX-5
Depreciation (estimated)$46,394 (57%)$21,595 (38%)
Charging / fuel$5,028 (6%)$15,384 (27%)
↳ of which charging loss12% (~$603)—
Maintenance$2,247 (3%)$4,501 (8%)
Insurance$7,000 (9%)$6,335 (11%)
Financing interest$14,480 (18%)$7,897 (14%)
Registration & fees$6,245 (8%)$865 (2%)
Total cost of ownership$81,393$56,577

When does the Hyundai Ioniq 6 (77kWh RWD) win?

Even at high mileage or a long hold, the Mazda CX-5 (petrol) stays cheaper here — its lower price and slower depreciation dominate. The Hyundai Ioniq 6 (77kWh RWD) is the pick mainly for reasons beyond 5-year cost.

Hyundai Ioniq 6 (77kWh RWD) vs Mazda CX-5 (petrol), side by side

Electric

Hyundai Ioniq 6 (77kWh RWD)

5-yr total cost
$81,393
Cost / month
$1,357
Cost / km
$1.16
Starting price
$79,990
Powertrain
Electric
Efficiency
14.3 kWh/100km
Petrol Lower 5-yr cost

Mazda CX-5 (petrol)

5-yr total cost
$56,577
Cost / month
$943
Cost / km
$0.81
Starting price
$44,990
Powertrain
Petrol
Efficiency
7.4 L/100km
NZ electricity
34.00c/kWh EA / MBIE
Petrol (NZ)
$2.97/L MBIE

FAQ

Is the Hyundai Ioniq 6 (77kWh RWD) or the Mazda CX-5 (petrol) cheaper to own over 5 years in New Zealand?

The Mazda CX-5 (petrol) stays the cheaper car to own — about $56,577 vs $81,393 for the Hyundai Ioniq 6 (77kWh RWD), a $24,816 difference over 5 years.

When does the Hyundai Ioniq 6 (77kWh RWD) become cheaper than the Mazda CX-5 (petrol)?

Even at high mileage or a long hold, the Mazda CX-5 (petrol) stays cheaper here — its lower price and slower depreciation dominate. The Hyundai Ioniq 6 (77kWh RWD) is the pick mainly for reasons beyond 5-year cost.

How much more does the Hyundai Ioniq 6 (77kWh RWD) cost to buy than the Mazda CX-5 (petrol)?

The Hyundai Ioniq 6 (77kWh RWD) starts at $79,990 — $35,000 more than the Mazda CX-5 (petrol) ($44,990). Over 5 years the ownership gap is $24,816 in favour of the Mazda CX-5 (petrol).

Which costs less per km — the Hyundai Ioniq 6 (77kWh RWD) or the Mazda CX-5 (petrol)?

The Mazda CX-5 (petrol): $0.81 vs $1.16 per km all-in ($943 vs $1,357 per month).

Full breakdowns