Only ₹1 lakh more” sounds like about ₹2,000 a month, and that is how most showroom upgrades get sold. Count road tax, insurance and interest, though, and the typical ₹1 lakh upgrade costs closer to ₹1.5 lakh.
WebKhoj’s recent piece on whether to buy a car on loan or wait and pay cash works through a ₹10 lakh on-road purchase and arrives at an EMI of ₹16,607. That settles how to pay. It leaves open what the ₹10 lakh should buy, because within one model the variant alone can move the on-road price by ₹4 lakh. At CarMaths we put a rupee value on the equipment that separates two variants, to help buyers work out which car variant to buy. Here we run those numbers through a loan, with the Maruti Baleno variants as the worked example.
How ₹1 lakh becomes ₹1.5 lakh
We looked at 744 upgrades between neighbouring variants, across 96 cars sold in India. The median gap on the price list is ₹1,00,000. Two things get added to it.
The first is the cost of putting the car on the road. Road tax and insurance are both charged as a share of the price, so a dearer variant pays more of each. In Delhi the median gap grows to ₹1,20,211. For petrol, diesel and CNG cars it ranges from about ₹1.09 lakh to ₹1.29 lakh, depending on the state.
The second is interest. If the down payment stays the same, the whole of that extra amount goes on the loan. At 9% for five years, the rate in the WebKhoj example, ₹1,20,211 adds ₹2,495 to the EMI and ₹1,49,700 to what you repay.
Two upgrades at the same price, with very different value
The table below shows the Baleno’s 1.2 petrol manual range, using Maruti’s Delhi prices as checked on 29 October 2026. The loan columns assume the same 9% for five years. Equipment value is our estimate of what the added features are worth on a car of this class, not a dealer price.
| Upgrade | Price-list gap | On-road gap, Delhi | Added to EMI | Added to total repaid | Equipment added |
| Sigma to Delta | ₹1,01,000 | ₹1,33,269 | ₹2,766 | ₹1,65,960 | ₹37,825 |
| Delta to Zeta | ₹1,00,000 | ₹1,12,180 | ₹2,329 | ₹1,39,740 | ₹1,30,050 |
| Zeta to Alpha | ₹1,10,000 | ₹1,23,398 | ₹2,562 | ₹1,53,720 | ₹96,900 |
| Alpha to Alpha(O) | ₹40,000 | ₹44,872 | ₹931 | ₹55,860 | ₹63,750 |
The first two rows cost almost the same on the price list. Sigma to Delta brings a 7-inch touchscreen, rear AC vents, steering controls and electric mirrors. Delta to Zeta brings automatic climate control, push-button start, 16-inch alloy wheels, LED headlamps and a 9-inch touchscreen, among others. That is more than three times the equipment for ₹1,000 less.
The cheaper-looking upgrade also costs more on the road, and tax is the reason. The Sigma, at ₹5,98,900, sits just under Delhi’s ₹6 lakh line, where the petrol road tax rate goes from 4% to 7%. That higher rate applies to the whole price of the Delta, so its road tax and fixed levy come to ₹27,037 more than the Sigma’s.
A stricter test when you are borrowing
Judged against the price list, 194 of the 744 upgrades, or 26%, add equipment worth at least the gap. Judged against everything you would repay on a loan, only 64 do, fewer than one in ten.
The Baleno shows the difference. Delta to Zeta clears the price-list test easily, ₹1,30,050 of equipment against ₹1,00,000, and then falls just short of the ₹1,39,740 repaid. Alpha to Alpha(O) is the only upgrade here that clears both, and it adds a single item, a Level 2 ADAS suite. If you would not use that, its value to you is nil.
This is not a reason to always buy the cheaper variant. The price also pays for things we do not value, such as materials and finish, you get to use the equipment for all those years, and money repaid over five years is not the same as money paid today. Treat the test as a way of seeing how much of a loan-funded upgrade is actually buying equipment. At ₹2,329 a month, the Zeta comes close and may well be worth it to you.
What it does to the monthly budget
Here is the full range with a fixed ₹2 lakh down payment, on Delhi on-road prices.
| Variant | On-road price, Delhi | EMI | Share of ₹1.2 lakh take-home pay |
| Sigma | ₹6,58,979 | ₹9,528 | 7.9% |
| Delta | ₹7,92,248 | ₹12,294 | 10.2% |
| Zeta | ₹9,04,428 | ₹14,623 | 12.2% |
| Alpha | ₹10,27,826 | ₹17,184 | 14.3% |
| Alpha(O) | ₹10,72,698 | ₹18,116 | 15.1% |
The WebKhoj example uses a household taking home ₹1.2 lakh a month and a 10% guide for the EMI, which works out at ₹12,000. On that guide the Sigma fits, the Delta is right at the edge and everything above it is a stretch. Going from Sigma to Alpha(O) adds ₹8,588 a month and ₹5,15,280 in total repayments, for equipment we value at ₹3,28,525.
Before you sign
- Compare on-road quotes, not list prices. Ask for an itemised quote on both variants and work from the gap between the two totals.
- Check for a tax line. In Delhi the petrol rate moves at ₹6 lakh and again at ₹10 lakh. Other states draw their lines elsewhere, so a small price gap can carry a large tax gap.
- Use a quick sum. At 9% for five years, each extra ₹1 lakh borrowed adds ₹2,076 to the EMI and ₹1,24,560 to what you repay.
- Strike out what you will not use. A feature you would never switch on is worth nothing to you, whatever anyone values it at.
- Put the upgrade in the down payment if you can. On Delta to Zeta, paying the extra from savings instead of borrowing it saves ₹27,560 in interest, as long as it leaves your emergency cushion intact.
Prices move through the year and these are Delhi figures, so check Maruti’s own Baleno page and get a written dealer quote for your city before you decide. The loan will last five years, which makes the variant one of the bigger financial choices in the whole purchase.
