With more electric vehicles on NZ roads than ever before, many drivers are asking a simple question: is an EV actually cheaper than a petrol car over time? In this 2026 breakdown, we compare purchase price, fuel or charging costs, servicing, reliability and long-term ownership to help Kiwi drivers make the right decision.
At Dave Allen Motors, we stock petrol, hybrid and electric vehicles daily. With 625+ Google 5-Star Reviews and over 48,000 vehicles sold, we help buyers understand the real-world costs before they commit.
Upfront Purchase Cost
Historically, EVs have cost more upfront than petrol cars, but that gap has narrowed significantly in New Zealand.
- Used EV prices have dropped sharply in recent years
- Many used EVs now compete directly with petrol vehicles
- Popular models offer excellent value in the used market
While petrol cars may still be cheaper to buy initially, EV pricing is now far more accessible.
Fuel vs Charging Costs
Energy costs are where EVs clearly pull ahead.
- EV charging: Significantly cheaper per kilometre than petrol
- Home charging: Offers the lowest running cost
- Petrol: Continues to fluctuate and trend higher
Most NZ EV owners save thousands in energy costs over several years compared to petrol vehicles.
Servicing & Maintenance
EVs are mechanically simpler than petrol cars.
- No oil changes
- No timing belts
- No spark plugs
- Less brake wear due to regenerative braking
As a result, EV servicing costs are typically lower over the life of the vehicle.
Battery Reliability & Longevity
Battery concerns are common, but modern EV batteries are far more durable than many people expect.
- Most EV batteries last well beyond 8 - 10 years
- Degradation is gradual, not sudden failure
- Used EVs in NZ commonly show minimal battery loss
Battery technology has matured significantly, reducing long-term risk.
Long Term Ownership Costs
When looking at total ownership costs over 3 - 5 years:
- EVs: Lower energy and servicing costs
- Petrol cars: Higher fuel and maintenance expenses
- EV resale: Strong demand for well-maintained used EVs
For many households, EVs now deliver the lowest total cost of ownership.
Which Should You Choose?
- Choose an EV if: You commute daily, can charge at home, and want the lowest running costs
- Choose petrol if: You do frequent long-distance travel or lack charging access
Your ideal choice depends on how you drive, where you live and your weekly travel habits.
Browse EVs and Petrol Cars
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With 625+ Google 5-Star Reviews, Dave Allen Motors is trusted by drivers across Hamilton, Waikato and NZ.
FAQs
Are EVs cheaper to run than petrol cars?
Yes. Electricity costs are far lower per kilometre than petrol, especially with home charging.
Do EVs need less servicing?
Yes. EVs have fewer moving parts and generally lower maintenance requirements.
Is petrol still a good option?
Yes. Petrol cars remain practical for drivers without charging access or who regularly travel long distances.