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Chatbots & AI

WhatsApp chatbot for car dealerships: the appraisal request that puts the lot in order

Five pieces of information in a single message, in an order that is not accidental: it separates the person with a used car to trade in from the one browsing listings from the sofa. The exact text, inside.

11 min readStriqTech

"Hi, do you still have the Corolla that is listed?" and "Hi, I have a 2018 Corolla XEI with 94,000 km, how much would you give me for it?" come into the same WhatsApp, look identical in the chat list and, in most dealerships, get answered the same way. The second one is worth several times more than the first, and the salesperson usually finds that out three weeks later.

Whoever has a used car to trade in has already solved the down payment: they do not depend on a loan coming through and their decision comes down to a single variable, the difference. Nobody buys a USD 18,000 car: they buy a USD 6,000 difference. And every used car that comes in properly appraised is also one more unit to list with a margin of your own, which is where the money comes from —the margin on a brand-new car is set by the manufacturer and it is small—.

That is why the first reply to any inquiry should be the request for the five pieces of information needed to appraise, in an order that is not accidental, and not the published catalogue. The exact text is below, ready to copy: you send it by hand from WhatsApp Business and it keeps the lot in order up to around fifteen used-car inquiries a day. The prices of automating it are further down, in two lines, which is the place they deserve.

In a dealership the appraisal is not a closing formality: it is the business

The average salesperson treats the used car as the last step: first they show the unit, then they talk price, and only when things get serious do they ask whether there is something to trade in. That is backwards.

Whoever has a car to trade in has already solved the down payment. They do not need to scrape a deposit together, they do not depend on a loan coming through, and their decision comes down to a single variable: the difference. Nobody buys a USD 18,000 car, they buy a USD 6,000 difference. Whoever trades nothing in has a whole financing conversation ahead of them before they can say yes.

And there is a second reason, less obvious: every used car that comes in properly appraised is one more unit to list with a margin of your own. The appraisal is not just the way to close this sale, it is your buying channel. A dealership that appraises little runs out of things to sell two months later.

The practical consequence: if you leave the appraisal for the end, you rank your leads by stated interest instead of by real ability to do a deal. The message that follows flips that order in the first exchange.

The five pieces of information, in this exact order

This is the text. It goes out as a reply to any inquiry that mentions trading in a used car, and also to the ones that do not mention it but ask about final price or financing.

Hi [name], thanks for writing about the [listed model].

Yes, we take used cars as part payment. To give you a range today I need 5 details about yours, it takes a minute:

  1. Model, trim and year, as they appear on the registration document
  2. The mileage on the odometer today
  3. Whose name it is in and whether it has a lien or unpaid road tax
  4. If you had to fix something before selling it, what would it be?
  5. What are you hoping to get for it?

With that I will send you the range. If it works for you, we arrange for the appraiser to see it and that is where the firm number comes from.

Why those five and not others:

The trim, not the model. Between a Corolla XEI and a Corolla XLI there are thousands of dollars of difference. But the real value of this detail is another one: whoever knows their car's trim owns it, chose it and cares about it. Whoever answers "a Corolla" is browsing listings from the sofa.

Today's mileage, not an approximation. The person who opens the door, looks at the odometer and sends you the exact number is metres away from the car or cared enough to walk to the garage. The one who answers "low use" did not.

Title and debt. It is the most expensive filter to discover late. A car with an active lien, in the name of an estate, a company or an ex-partner cannot be traded this week no matter how much both sides want it. Asking it in message one avoids the three weeks of back and forth that end in nothing.

"What would you fix?" It is the only way for someone to tell you the defects without feeling interrogated. Asked as "has it been in a crash?" the answer is no in ninety per cent of cases. Asked this way, out come the clutch, the air conditioning that does not cool and the tyres.

The price expectation. Without this detail, the appraisal lands as a disappointment with no context and the conversation dies there. With it, you know before appraising whether you will have to work on the difference or whether the number will land comfortably.

The four photos, and how to ask for them

Photos are only asked for from someone who has already given the five details, and there they are asked for with instructions, not as "send me some photos". There are four of them and each one answers something specific:

Three-quarter front. It is the only shot that shows the front and one side at the same time, so a single image reveals whether there is a difference in shade between panels, a replaced bumper or a headlight from another brand.

Full side, the whole car in the frame. It is useful for reading the door line and for seeing the real condition of the wheels and tyres, which is the first thing you will discount for.

Dashboard switched on, with the mileage visible. It confirms detail two of the message and, along the way, shows which warning lights stayed on. An engine warning light on in the photo changes the conversation before the car arrives.

Boot open, with the mat lifted. That is where the spare wheel, the jack and —above all— the spare wheel well are. A well with welding or fresh paint tells the story of a rear-end crash nobody mentions in point four.

Four photos asked for with those instructions arrive in ten minutes. The same person, if you ask for "photos of the car", sends three front shots into the sun and none of them are any use.

How to read the reply: four signals and what to do with each one

The message works as a filter as much as a request for information. How they reply says more than what they reply.

  • The five details in full, in under two hours. Priority one. Phone call the same day, no more WhatsApp. This group is small and concentrates almost every deal that closes.
  • Four out of five, with point 3 dodged. There is a legal issue. Ask only about that before spending the appraiser's time; if the car is not transferable in the short term, the rest of the conversation is decorative.
  • They reply "so how much will you give me?" without providing the details. They are collecting offers for their used car to use the highest one as a floor at the next door. Reply with the public range from the listings for that model, never with a buying offer. An offer here becomes the number they will carry to the dealership next door.
  • No reply within 48 hours. There is no appraisal. They go into the follow-up sequence, not to the salesperson. In this business, whoever did not buy today usually comes back between 60 and 90 days later.

In implementations of this kind we usually see between three and four out of every ten people who receive the message answer all five details. We give that as a reference of what we see, not as a promise: your own number gets measured by sending it by hand for two weeks.

The two numbers on the lot, which are not the ones in the WhatsApp inbox

Here the asset is not the inquiries: it is the units sitting still. A used-car dealership is an inventory business disguised as a customer service business, and the calculation that decides whether automating anything is worth it is done with two numbers that are on the lot, not on the salesperson's phone.

One: the money sitting still. Used units listed times the average list price. With 18 units at USD 11,000, that is USD 198,000 tied up.

Two: the days of turnover. Stock divided by the units you sell per month, times 30. With those 18 units and 9 sales a month, that is 60 days.

Having a unit sitting still costs between 1.5% and 2.5% of its value per month, adding up the list price adjustment while the car ages, road tax, insurance, the space on the lot and the cost of having that money idle. On USD 11,000 that is between USD 165 and USD 275 per unit, and on the 18 in the example, between USD 3,000 and USD 5,000 per month of holding cost for the whole lot. That percentage is a planning assumption, not a measurement: it depends on your country, your cost of capital and how prices adjust in your segment, so check it with your accountant before taking it as fact.

With that yardstick, the question stops being whether the bot brings in new sales and becomes whether it cuts days of turnover. Bringing average turnover down from 60 to 52 days, with the same 9 sales a month, leaves stock at 15.6 units instead of 18: between USD 400 and USD 660 less holding cost per month, and around USD 26,000 of capital freed up to buy units that do turn over. The most expensive monthly fee is USD 399.

On the other side of the equation is what comes in: every used car that comes in because the appraisal was done in time is one more unit to list, with a dealership margin that in this business usually sits between 8% and 15% of the sale price. On a USD 11,000 unit, between USD 880 and USD 1,650.

And the calculation also works for ruling this out: if your turnover is already at 35 days and what you are short of is stock to restock the lot with, you have a buying problem and not an answering problem. What needs sorting out there is where the used cars come from, not how the listings get answered.

The portal, the lot, the memory and the calendar: four things the thread cannot look at

You send the five-details message yourself, from WhatsApp Business, without paying anybody, and with one person coordinating it holds up to around 15 used-car inquiries a day. What breaks it above that is not the number of messages: it is that in a used-car dealership there are four things that live outside the thread —in the portal, on the lot, on the salesperson's phone and in the calendar— and the thread has no way of looking at them.

The unit code. The lead that arrives from a portal comes tied to a specific listing: it already told you which car they want before they wrote a word. By hand, with five similar Corollas listed and fifteen inquiries a day, that detail gets lost in the mix and you end up asking what the customer already answered.

There is only one of each unit. There are not two identical used cars in another colour at another price to offer: once that unit is sold, it is sold. Replying three hours later sometimes means replying about something that no longer exists, and the alternative —offering them something else— requires knowing right then what is left on the lot.

The memory. The five details stay in a WhatsApp thread inside one salesperson's phone. There is no used-car pipeline, there is no way to know how many units are under negotiation, and when the salesperson leaves, the book of business leaves with them.

The 60- and 90-day follow-up. A good part of whoever inquires today is trying to sell their used car on their own first, and comes back when they get tired of showing it. That return is a large slice of the sales in this business and nobody sustains it by hand with 200 open conversations.

The other thing that cannot be done by hand is returning an appraisal range on the spot: cross-checking trim, year and mileage against the active listings for that same model takes ten minutes per inquiry, and at that speed nobody does it more than twice a day.

Four lots where this does not get bought: no digital stock, brand-new only, high prices or showroom sales

  • If the stock does not live anywhere digital. If the available units are in the owner's head and in an out-of-date spreadsheet, the bot will quote sold cars and arrange visits to see them. That leaves the dealership in a worse position than not replying. First you sort out the stock.
  • If almost all your sales are brand-new cars on a savings plan (plan de ahorro) and you do not take used cars. There the bottleneck is administrative, not commercial, and the chatbot does not touch it.
  • If your stock is expensive against the listings for the same model. The used-car buyer compares four identical listings on the same screen before writing. If your unit is two rungs above, replying faster changes nothing: first you fix the list price.
  • If your sales come from the showroom and referrals and portal listings are marginal. With no incoming WhatsApp leads there is no queue of inquiries to put in order, and the salesperson asks for the five details face to face better than any bot.

What gets automated and what it costs

With those four cases ruled out, two lines are left, because price is not what decides this. A bot that answers on stock from a spreadsheet, sends the five-details request and hands off to the salesperson runs from USD 500 to USD 900 of setup with a monthly fee of USD 199 to USD 249. The version connected to the listings feed and to the management system runs from USD 1,500 to USD 2,500 with USD 299 to USD 399 per month. Why that difference exists —and why it almost never comes down to "a better AI"— is developed in why an AI chatbot costs USD 500 in one place and USD 5,000 in another, and the breakdown of the monthly costs is in how much an AI WhatsApp chatbot costs.

What is specific to a dealership, which is the only thing worth looking at in a quote in this business, is three things: that the bot reads the listings feed so the sold unit stops quoting itself; that the appraisal range is calculated against active listings for the same model, trim and year instead of coming out of a table written by hand six months ago; and that the 30- and 60-day follow-up fires on its own for the ones left with an appraisal done.

On the Meta cost, a note that tends to be a pleasant surprise: since the lead comes in by writing from the portal, it opens a 24-hour service window and the whole appraisal conversation has no per-message cost. What does pay for a template is the 30- and 60-day follow-up, which is cents of a dollar per send and is worth checking against the current rate in your country.

What is not included in either version: the appraiser.

Have you already been given a quote in this business? Forward it to info@striqtech.com. The first thing to read is not the price: it is whether it says where the stock data comes from and what the appraisal range is calculated against. If it does not say, the number at the bottom does not mean anything yet.

Before hiring anything, walk the lot

Find the three oldest units in your stock and check how many days they have been listed for. Then open those three listings and count two things: how many inquiries came in, and how many have a reply with something inside it —a price, the photo they asked for, a time to come and see it—. A "hi, still interested?" does not count as a reply and you know it.

What follows is a subtraction, not a multiplication. A unit sitting still for 120 days is four months of your money idle plus however much that model depreciated over that period, and you know both numbers by heart because you live them every month. Put that result next to the number of unanswered inquiries on those same three listings. If the number is small, your lot turns over and all of this can wait with a clear conscience. If it is big and there are two-week-old questions sitting unopened above it, you are no longer deciding whether to automate: you are deciding how many more months you pay for it.

And there is a second round that is worth more than the first. Write down the three number plates and repeat the walk in 30 days with the three oldest units at that moment. If they are the same three, you do not have a response-speed problem: you have a list price problem, and replying faster only gets you a no sooner. That is the only case in this piece where the right answer does not come from any software provider, but from whoever sets the prices on the lot.

Frequently asked questions

How do I stop the bot from promising a number for the used car that the appraiser will not stand behind later?

By separating two things the customer always mixes up: the price that model is listed at and the price a dealership buys it at. The bot returns the first one, as a range and phrased like this: it is what people are asking today for the same model, trim, year and mileage in the active listings. The dealership buys below that number because afterwards it reconditions the unit, warranties it, lists it and finances it, and that is worth saying in the same message instead of leaving it as a surprise at closing. The firm number comes out with the car in front of you: bonnet, tyres, service history, inspection and clean title. No serious dealership buys from photos, and the customer knows it.

What about inquiries for a unit that has already been sold?

It is the most underestimated problem in this business: a listing keeps generating messages two or three weeks after the unit left the showroom, and in used cars there is no identical second one to offer. If the bot does not read an up-to-date stock source it will quote cars that do not exist and arrange visits to see them, which leaves the dealership in a worse position than not having replied at all. The rule is simple: if the stock does not live anywhere you can query, that gets sorted out before putting the bot in, not after.

From what stock size on is it worth automating this?

It is not measured in inquiries but in money sitting still. Multiply the used units you have listed by the average list price: that is the figure that decides. With 8 units at USD 9,000 that is USD 72,000 and one person coordinating is more than enough. With 18 units at USD 11,000 that is almost USD 200,000 tied up, and there every extra day of turnover has a cost the monthly fee does not even graze. The second number is how many used cars come in per month: if fewer come in than you sell, your problem is buying, not answering.

Does it connect to MercadoLibre, Demotores or whichever portal I list on?

Yes, and it is the integration that changes the conversation the most. Most of the portals (MercadoLibre and Demotores are the main regional car marketplaces) expose the listings feed, so the bot knows which units are still active and stops offering the sold ones. On top of that, the incoming lead carries the code of the listing being asked about, which makes it possible to open the reply talking about that specific unit —model, trim, mileage, price— without asking the customer what car they were looking at when they already said it by writing in. Replying 'hi, what were you looking for?' to somebody who arrived from a specific listing is starting off on the back foot.

What about units on consignment?

That is the case where it is worth stopping the bot on purpose. On a unit of your own you decide the price and the bot can move within a range you defined. On a consigned one the price belongs to a third party, any counteroffer has to be checked, and promising flexibility the owner will not accept later burns both the deal and the relationship with the consignor. The practical move is to flag those listings in the stock source and have the bot answer on specs and availability, but hand off any price conversation to the salesperson without exception.

How much does a WhatsApp chatbot for a car dealership cost?

There are two ends. The pre-designed version, which answers on stock from a spreadsheet, sends the appraisal request and hands off to the salesperson, runs from USD 500 to USD 900 of setup with a monthly fee of USD 199 to USD 249 that includes hosting, monitoring and support. The version connected to the listings feed and to the management system, with a calculated appraisal range and 30- and 60-day follow-up, runs from USD 1,500 to USD 2,500 of setup with USD 299 to USD 399 per month. These are regional market reference values; the number for your case comes from looking at which system your stock lives in today.

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