Software Comparison

Bill My Car vs Generic CRMs (Mazu, myBillBook and Others): Why Car Dealers Need a Vehicle-Native App

By Bill My Car · Updated 25 August 2026 · 3 min read

You can run a car dealership on a regular CRM. Plenty of people try. The trouble isn't that a CRM is missing a feature or two, it's that the whole thing is built around the wrong idea of what you're selling, and no amount of custom fields really fixes that. Here's what I mean, so you can decide before you spend a year fighting your software. (If you'd rather see a plain feature table, that's in Bill My Car vs generic billing software. To watch it play out over a real working day, there's the day-in-the-dealership walkthrough.)

The problem is the shape

Every CRM is built around two things: a person you're selling to, and a deal worth some money. That works beautifully for selling software or booking consulting work. But a car sale has a third thing the CRM has no room for: the car itself. It's a real, registered, chassis-numbered object that exists before the buyer shows up and sticks around long after the sale. The car is what the buyer actually wants, what the tax is worked out on, what the RTO cares about, and what a dispute three years later will be about. When the main thing in your business has nowhere to sit, everything after it turns into a workaround.

Where it shows up

1. The bill. There's no field for the registration, chassis or engine number, so they get shoved into a description box. And GST goes on the full price, because a CRM has never heard of the used-vehicle margin scheme under Rule 32(5) of the CGST Rules, 2017.
2. The paperwork. One sale is six to eight legal documents, not one invoice. The sale letter, delivery note and the RTO transfer forms, all prescribed under the Central Motor Vehicles Rules, 1989, get written by hand next to your "automated" CRM.
3. The stock. Your cars aren't identical units of one product. You've got twelve different cars, each with its own cost, its own status, and its own ageing clock quietly eating your margin. A quantity field can't describe that.
4. The leads. A buyer wants that i20 sitting on your lot, not a product category. A pipeline only helps if each lead is tied to a real car in stock, so you know who's chasing something you actually have.
5. The records. Ownership questions turn up years after the sale. Your paperwork needs to live somewhere you control and can search by car, not scattered across a vendor's storage, which is the whole point of proper document management.

Why custom fields don't save it

The usual answer to all this is "we'll just add custom fields." You can, and dealers do. But custom fields are decoration stuck on top of the wrong objects. Sure, you can add a "chassis number" box to a contact. It still won't carry that number into a Form 29, it won't make sure the same number shows up on the invoice and the delivery note, and it won't work out margin GST from a purchase price the CRM never saved. You end up running the real system in Word and using the CRM as a very expensive address book.

What changes when the car comes first

Bill My Car starts with the thing a CRM leaves out. The car is the record, and the buyer, the invoice, the RTO forms and the documents all hang off it. One sale entry gives you the correct bill, the sale letter, the delivery note and the full set of transfer forms, marks the car as sold in your stock, and files every PDF in your own Google Drive, sorted by deal and yours to keep. You still get a lead pipeline, because dealers do need one, but it's pointed at cars instead of generic "opportunities."

None of this makes a general CRM bad software. Mazu, Zoho and the rest are good at the businesses they were built for. A car dealership just isn't one of them. For the buying checklist across all of this, see best dealership management software, or try Bill My Car free.