CarScout — Finn Mackay

The idea

Marketplaces are full of cars and bikes priced below what they're worth — the trick is spotting them before anyone else. CarScout searches Facebook Marketplace for the models you care about, works out the going rate for each one, and flags anything trading at a real discount. It runs itself every morning and pings you the moment it finds a steal. No paid valuation API, no manual scrolling.

How it works

Scout

Drives a real logged-in browser session to search Marketplace for each model in your watchlist, across cars and bikes.

Value

Groups every listing by model — cars also by year (±2) — and takes the median asking price. A listing needs enough comparable peers before that median is trusted, so one odd listing can't skew it.

Rank

Flags anything priced a set percentage under its peer median, sorted by how deep the discount runs.

Notify

Sends the day's finds to Telegram and a desktop alert, with a ranked HTML report. A dedupe layer means you only hear about genuinely new deals.

Schedule

One command installs a daily job so it runs on its own, every morning.

Why median-of-listings

Book-value APIs are region-locked and cost money. Instead, CarScout treats the live market as its own price oracle: pull every comparable listing, take the middle, and measure each car against its true peers. It works in any country, for cars or bikes, with zero external data source — and it can't be fooled by a single mispriced outlier.

Deal-finder only — by design

CarScout finds and alerts. It never messages sellers on your behalf. You stay in control of who you contact and when.