People compare fuel efficiency before booking a car with a driver, and it is a completely reasonable instinct carried over from buying or self-driving.
On a chauffeur-driven booking it is the wrong variable, and it is worth saying why rather than publishing a number that looks helpful and is not.
You are not buying fuel
You pay a published per-kilometre rate. The operator buys the fuel. Whether the car does eighteen kilometres to the litre or twenty-four, your fare is the rate multiplied by the chargeable distance.
A more efficient vehicle improves the operator’s margin. It does not appear on your bill.
That is why we removed the mileage figures from our own vehicle page. Publishing them invited a conversation about our cost structure instead of about your trip — and implying that an efficient car means a cheaper fare would simply be untrue.
What actually moves your number
Four things, and they are all on the rate card:
1. Chargeable distance. The higher of what you drive and the minimum — around 130 km on a one-way drop, around 250 km per day on a round trip. This is the one that surprises people most, and on a short trip it decides the fare entirely.
2. Driver bata, and a night halt if the driver sleeps away from home. What that is and when it should not appear.
3. Pass-through costs. Toll, parking, interstate permit, state entry tax — at actuals, with receipts.
4. Tax.
Get those four itemised from any operator and you can compare two quotes properly. The full breakdown is here.
Where the fuel question is genuinely worth asking
One place: CNG versus petrol, and not for the reason people expect.
It does not change your fare. It does change boot space — the cylinder takes luggage room — and it can mean an extra refuelling stop on routes where CNG stations are thinner. Both affect your journey. That comparison is here.
What to ask instead
How many seats, honestly, and for how long? The question that actually determines whether you enjoy the trip. Our answer for six adults.
How much luggage fits with everyone aboard? The constraint that bites before seating does.
Is the quote itemised? If not, you cannot compare it with anything.
Does the operator hold the permits for your route? Why that matters.
Those four tell you far more about a booking than any efficiency figure.