MG MG Comet EV vs Petrol
Full 5-year total cost of ownership — fuel, maintenance, insurance, resale.
5-year TCO verdict
Over 5 years, the MG MG Comet EV costs ₹4.13 L less than its petrol equivalent.
Break-even
1.9 yrs
Annual km
14,600
CO₂ saved
5.4 t
Running cost over time
Is the MG MG Comet EV really cheaper than petrol?
The MG MG Comet EV starts at ₹7.50 Lakh ex-showroom — about 28% more than an equivalent petrol car in the same segment. That upfront gap is the usual sticking point for buyers. But electric cars make up for it on running cost. Here's the honest 5-year math.
The verdict
Over 5 years, the MG MG Comet EV saves you approximately ₹4.13 Lakh compared to an equivalent petrol car. At current prices, the MG MG Comet EV breaks even against petrol in about 1.9 year of ownership.
Why EVs win on running cost
- Fuel — At ₹8/kWh, the MG MG Comet EV costs roughly ₹0.61/km. A petrol car doing 18 km/L at ₹105/L costs ₹5.83/km — nearly 9.6× more.
- Maintenance — EVs have no engine oil, spark plugs, timing belts, clutch, or exhaust. Expect ~₹5,000/year for the MG MG Comet EV vs ~₹18,000/year for an equivalent petrol car.
- Insurance — EV policies are ~15% cheaper on average (lower IDV depreciation, government push).
- Resale — EV resale has improved sharply since 2023. After 5 years, premium EVs hold 55-60% of value vs 45-50% for petrol.
The environmental case
Over 5 years at 40 km/day, the MG MG Comet EV saves approximately 5 tonnes of CO₂ vs an equivalent petrol car — equivalent to planting ~257 trees or removing ~1 passenger cars off Indian roads for a year. Even accounting for India's coal-heavy grid (which we factor into the calculations), EVs come out clearly ahead.
When petrol still makes sense
EVs aren't automatic winners for every buyer. Petrol can win when:
- You drive less than 20 km/day (break-even stretches to 7+ years)
- You don't have home charging (DC-only cost can be 2-3× home rates)
- You plan to sell within 2 years (upfront premium doesn't get recovered)
- You regularly drive 500+ km inter-city trips without charging stops
Our methodology
We use India's CEA grid emission factor (0.71 kg CO₂/kWh), average domestic electricity tariff (₹8/kWh), current national petrol average (₹105/L), body-type-specific mileage baselines, and 5-year depreciation curves derived from used-car market data. All numbers update with the sliders above. Read our full methodology.
EV vs Petrol FAQs
Is the MG MG Comet EV cheaper than a petrol car?+
Over 5 years, the MG MG Comet EV saves you approximately ₹4.13 Lakh compared to an equivalent petrol car. At current prices, the MG MG Comet EV breaks even against petrol in about 1.9 year of ownership.
What is the running cost of the MG MG Comet EV per km?+
At ₹8/kWh electricity and 13.22 km/kWh efficiency, the MG MG Comet EV costs about ₹0.61 per km in fuel — vs ₹5.83 per km for a petrol car at current rates.
How much CO₂ does the MG MG Comet EV save vs petrol?+
Over 5 years at 40 km/day, the MG MG Comet EV saves approximately 5 tonnes of CO₂ compared to an equivalent petrol car — equivalent to planting ~257 trees.
Does the MG MG Comet EV's higher purchase price pay back?+
At current prices, the MG MG Comet EV breaks even against petrol in about 1.9 year of ownership. After break-even, every km driven is pure savings. By year 10, EV owners typically save ₹4-8 lakh vs comparable petrol cars.
What is the maintenance cost of the MG MG Comet EV?+
EVs have roughly 3× lower maintenance than petrol cars — no engine oil, spark plugs, clutch, timing belts, or exhaust system. Expect ~₹5,000/year in servicing for the MG MG Comet EV vs ~₹18,000/year for an equivalent petrol car.