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Fuel is usually the largest running cost of a cab. Choosing between CNG vs diesel vs EV taxi affects profit for years. The right choice depends on whether you mostly do city runs or long outstation trips.
Comparison
| CNG | Diesel | EV | |
|---|---|---|---|
| Running cost per km | Low | Medium | Lowest (home/depot charging) |
| Purchase price | Low–medium | Medium–high | High |
| Range per fill | Shorter; CNG stations can have queues | Long | Depends on battery; improving |
| Highway/outstation | Good on routes with CNG stations | Excellent | Possible with planned fast charging |
| Hill routes | Weaker pull when loaded | Strong | Strong torque; plan charging |
| Maintenance | Low, plus CNG kit checks | Medium | Low (fewer moving parts), battery health matters |
| Luggage space | CNG cylinder eats boot space | Full | Full in most models |
Which suits which business?
- Airport and local city work: CNG or EV (lowest cost per km)
- Punjab–Delhi outstation: CNG works on well-covered highways; diesel for reliability and luggage
- Himachal and long tours: diesel (or petrol SUVs/MUVs) still most common
- Corporate contracts with green goals: EVs can help win contracts. See corporate taxi contracts
Hidden factors
- Luggage: NRI airport pickups need full boot space, a problem for some CNG cars
- Downtime: CNG queues and EV charging time reduce trips per day
- Resale value and future regulations (diesel restrictions in NCR for older vehicles)
- Driver habits: smooth driving matters more than fuel type for efficiency
Do the maths
Compare total cost per km = (fuel + maintenance + EMI/depreciation + insurance) ÷ km. See taxi business profit calculation.
Mixed fleet
Many operators keep CNG/EV sedans for local and airport, and diesel MUVs (Innova, Ertiga) for families and hills. See sedan vs SUV vs Innova.
FAQs
Is an EV practical for Ludhiana–Delhi?
With planned fast-charging stops it can be, but check real-world highway range and charger reliability on your route.
Do CNG cars get permits like others?
Yes, fuel type doesn't change permit requirements, though fitness checks include the CNG kit.
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