BYD Dolphin vs Mazda 3: Running Costs in South Australia
Data verified April 2025
At this driving profile, the Mazda 3 is the more economical choice over 5 years in South Australia.
Running only 15,000 km per year in South Australia, the BYD Dolphin's higher purchase price doesn't fully pay back through lower running costs within 5 years. The BYD Dolphin costs $76,469 in total versus $64,076 for the Mazda 3 — a difference of $12,394. Break-even would take approximately 13.3 years — beyond the 5-year horizon. If you drive significantly more km per year, or if petrol prices rise substantially, this comparison would shift. The BYD Dolphin still avoids around 6,491 kg of CO₂ over the ownership period.
The economics don't stack up at this driving distance — increase annual km or extend the holding period to change the picture.
Frequently asked questions
Is the BYD Dolphin cheaper than the Mazda 3 over 5 years in South Australia?
At 15,000 km/yr in South Australia the Mazda 3 is the cheaper option over 5 years: $64,076 total versus $76,469 for the BYD Dolphin. Use the calculator to adjust for your situation.
How long does the BYD Dolphin take to break even against the Mazda 3 in South Australia?
At 15,000 km/yr in South Australia the BYD Dolphin breaks even against the Mazda 3 after approximately 13.3 years (200,000 km).
How much does it cost to charge the BYD Dolphin vs fuel the Mazda 3 per year in South Australia?
At 15,000 km/yr in South Australia, charging the BYD Dolphin costs approximately $991/yr, versus $1,818/yr in petrol for the Mazda 3. South Australia's electricity and fuel rates are applied automatically.