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I Built a Platform to Sell 6–20+ More Cars a Month on Facebook Marketplace

John.H

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Nov 12, 2018
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Some of you might remember the post I made here a while back about how we sold 24+ cars in 30 days using nothing but Facebook Marketplace. That write-up turned into one of the more practical discussions we’ve had on organic lead generation — and several dealers here ended up replicating parts of that strategy successfully.

Since then, I’ve spent the better part of a year — over 3,000 hours — turning that concept into a fully-developed product. What started as a manual posting strategy is now a full platform that automates nearly everything I used to do by hand. The name is autobook.io

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I built it from the ground up in React, TypeScript, and Vite, with a custom backend and Chrome Extension that ties it all together. It’s built to handle production-level dealership volume efficiently and without cutting corners.

We’ve been testing it quietly with a handful of clients, and most are seeing an increase of 6–12 additional sales per month from Marketplace alone. A few are doing 20+ consistently.

This isn’t another listing bot. It’s an intelligent AI-driven importer that scrapes your website’s inventory (without iFrames) and runs local, client-side image analysis to automatically exclude framed or bordered photos — the kind that consistently kill conversion on marketplace.

One of the most important pieces we’ve added recently is attribution tracking. Because what gets tracked gets managed.
We’re now able to measure:
  • How long vehicles take to sell once listed
  • Which listings are generating the most buyer activity
  • And the true ROI of Marketplace as a sales channel
In short, the system finally connects the dots between Marketplace activity and actual sales results — so you can make smarter stocking and pricing decisions based on what the market is responding to, not just gut feeling.

At the moment, it’s free to join, free to use, and free to test while we’re still in open beta.
The only thing I ask is that anyone using it helps by reporting anything that looks off or could be improved. If it helps your store, a quick review on the Chrome Extension page or feedback here would mean a lot.

The long-term plan is to keep it so damn affordable — priced well below most of the $140–$500/month tools out there — but far more capable.

The platform isn't perfection, but it's getting quite close to it. We are still in beta, and are taking any suggestions we can get when it relates to features & the needs of our dealer partners.

Regardless. If you’ve been around this forum for a while, you know I’m not here to pitch gimmicks. I built this because I got tired of seeing dealers overpay for weak tools, and I wanted something that actually moves the needle in a measurable way.
 
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✨ AI Highlights

John.H shares how he developed autobook.io, a platform that automates Facebook Marketplace posting to help dealerships sell 6-20+ additional cars monthly, building on a previous manual strategy that generated 24+ sales in 30 days. The platform, built with React, TypeScript, and a Chrome Extension, represents over 3,000 hours of development work and has already facilitated approximately 60 sales among early users. The thread demonstrates a successful path from organic lead generation strategy to scalable software product for dealers seeking to leverage Facebook Marketplace at scale.

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