MG MG4 vs Mazda 3: Running Costs in Western Australia
Data verified April 2025
At this driving profile, the Mazda 3 is the more economical choice over 5 years in Western Australia.
Running only 15,000 km per year in Western Australia, the MG MG4's higher purchase price doesn't fully pay back through lower running costs within 5 years. The MG MG4 costs $74,018 in total versus $63,236 for the Mazda 3 — a difference of $10,782. Break-even would take approximately 11.6 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 MG MG4 still avoids around 1,733 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 MG MG4 cheaper than the Mazda 3 over 5 years in Western Australia?
At 15,000 km/yr in Western Australia the Mazda 3 is the cheaper option over 5 years: $63,236 total versus $74,018 for the MG MG4. Use the calculator to adjust for your situation.
How long does the MG MG4 take to break even against the Mazda 3 in Western Australia?
At 15,000 km/yr in Western Australia the MG MG4 breaks even against the Mazda 3 after approximately 11.6 years (173,750 km).
How much does it cost to charge the MG MG4 vs fuel the Mazda 3 per year in Western Australia?
At 15,000 km/yr in Western Australia, charging the MG MG4 costs approximately $855/yr, versus $1,800/yr in petrol for the Mazda 3. Western Australia's electricity and fuel rates are applied automatically.