Does the calculator open with Dolphin and Corolla Hybrid already selected?

Yes. Open prefilled calculator loads both vehicles and your default region on the home page.

Is Corolla Hybrid treated as petrol or hybrid in the calculator?

It appears on the petrol/hybrid side. The fuel consumption (4.0 L/100 km) reflects the hybrid powertrain's combined efficiency.

Doesn't the EV usually cost more upfront?

The Dolphin (~$29,990) now sits below the Corolla Hybrid (~$32,110). Both are genuinely affordable, but here the EV is the lower-priced option.

Does the Corolla Hybrid need to be charged?

No. It is a self-charging hybrid — no plug, no electricity tariff. It runs entirely on petrol with regenerative braking.

Can I test different petrol prices?

Yes — override the fuel c/L in advanced fields to see how price swings affect the Corolla Hybrid's total cost.

Is this financial advice?

No. CarCostIQ is an educational comparison tool. Confirm taxes, incentives, and finance with qualified professionals.

BYD Dolphin vs Toyota Corolla Hybrid — 5-Year Cost Comparison (Australia)

BYD Dolphin versus Toyota Corolla Hybrid: this is the comparison many Australian buyers are asking — pure EV hatchback against one of the most fuel-efficient hybrids on the market. With the Dolphin now around $2k cheaper to buy than the Corolla Hybrid, this isn't a 'can I afford the EV?' question — the EV is the cheaper car upfront. What's left to weigh is whether the hybrid's freedom from charging and its longer touring range are worth paying a bit more for.

Perfect for buyers who have already narrowed down to efficient, affordable vehicles and want to see whether going fully electric beats the hybrid middle ground on total cash cost.

At a glance

BYD Dolphin

MSRP: $29,990
Efficiency: 14.2 kWh/100 km
Class: Hatchback

Hybrid

Toyota Corolla Hybrid

MSRP: $32,110
Efficiency: 4.0 L/100 km
Class: Sedan

Purchase price gap: $2,120 higher for Hybrid

BYD Dolphin

$29,990

Corolla Hybrid

$32,110

MSRP only — run the calculator to see the full TCO picture including energy, insurance, and resale.

Quick trade-off summary

No fixed winner here — outcomes depend on your km, tariffs, and any assumptions you change. Typical tensions:

The Dolphin actually undercuts the hybrid on purchase price (by ~$2k), so the decision comes down to running costs and the practical trade-off between charging and refuelling — not an EV price premium.
The Corolla Hybrid's 4.0 L/100 km is exceptionally efficient; the Dolphin's 14.2 kWh/100 km is competitive among EVs. The per-km cost gap is narrower than in most EV-vs-petrol comparisons.
Hybrid has zero range anxiety and no charging infrastructure dependency — a practical advantage the TCO model does not price.

Who this comparison is for

Cost-minimiser: Closest MSRP match in my database; running costs decide the winner.
Urban commuter: Short trips favour both efficient powertrains; test your actual km and tariffs.
First EV buyer: Dolphin is one of the cheapest EVs in Australia; compare against the familiar hybrid benchmark.
Environmental buyer: Both reduce fuel use; the calculator focuses on cost, not emissions — but lower cost often correlates.
Regional buyer: Hybrid refuels anywhere; EV depends on your local charging access.

Key assumptions behind the comparison

Five-year horizon with standard CarCostIQ defaults for insurance and maintenance.
Dolphin at 14.2 kWh/100 km; Corolla Hybrid at 4.0 L/100 km — both from Green Vehicle Guide.
The Corolla Hybrid is categorised as 'Hybrid' in CarCostIQ and appears on the petrol/hybrid side of the calculator.
Charging mix: 100% home by default. The Corolla Hybrid never needs to plug in.

When the EV is more likely to come out ahead

Your electricity rate (after charging mix) gives the Dolphin a lower per-km cost than 4.0 L/100 km at your petrol price.
Annual km is high enough (15k+) for the per-km energy savings to compound meaningfully.
You have reliable home charging — maximising the EV's cost advantage.

When the petrol / hybrid side may still win on cash cost

Petrol is cheap in your region and the Hybrid's 4.0 L/100 km keeps fuel spend very low.
You do not have convenient home charging, pushing the Dolphin onto more expensive public charging.
Low annual km means neither side's running cost differs enough to offset even a small MSRP gap.

Cost drivers to watch

Per-km energy cost: electricity c/kWh × 14.2/100 vs petrol c/L × 4.0/100.
Annual km — amplifies or shrinks the per-km cost difference.
Charging access — home vs public changes the Dolphin's effective rate.
Insurance — EV and hybrid premiums can differ; override with your quotes.
Residual value — Corolla Hybrid has strong resale history; Dolphin is newer to market.

Frequently asked questions

Does the calculator open with Dolphin and Corolla Hybrid already selected?: Yes. Open prefilled calculator loads both vehicles and your default region on the home page.
Is Corolla Hybrid treated as petrol or hybrid in the calculator?: It appears on the petrol/hybrid side. The fuel consumption (4.0 L/100 km) reflects the hybrid powertrain's combined efficiency.
Doesn't the EV usually cost more upfront?: The Dolphin (~$29,990) now sits below the Corolla Hybrid (~$32,110). Both are genuinely affordable, but here the EV is the lower-priced option.
Does the Corolla Hybrid need to be charged?: No. It is a self-charging hybrid — no plug, no electricity tariff. It runs entirely on petrol with regenerative braking.
Can I test different petrol prices?: Yes — override the fuel c/L in advanced fields to see how price swings affect the Corolla Hybrid's total cost.
Is this financial advice?: No. CarCostIQ is an educational comparison tool. Confirm taxes, incentives, and finance with qualified professionals.

Run this comparison live

The link loads both vehicles and NSW on the home calculator. A short banner appears above the form so you can confirm the right models are there before changing km, tariffs, or charging mix. The same setup carries through to the result page and any share link you copy.

What you should see next

1. A banner above the calculator confirming the selected pair and region.
2. The same vehicles carried into the result page before you copy or share the link.

Open prefilled calculator View 5-year result now Read methodology

Based on current reference pricing and published methodology. Data last reviewed: 2026-05-27. Estimates only — not financial advice.