Every place good cars turn up outside the big lanes — OPENLANE, Facebook Marketplace, eBay Motors, government and fleet sales, off-lease and lease-return sales — checked daily against your buy box, with the matches waiting for you each morning.
Wholesale lanes are where most of the volume is, but they are also where every other buyer is looking. The cars that leave the most margin often show up somewhere quieter: a private seller on Facebook Marketplace who wants it gone this weekend, a county retiring a fleet of pickups on GovDeals, a federal agency listing sedans on GSA Auctions, a lease-return SUV that the grounding dealer passed on and is now in an online closed sale.
The problem is that these sources do not come to you. Each one has its own site, its own search, its own schedule, and none of them will tell you when the car you want is listed. Checking them by hand every day is a job nobody on a busy desk actually does — so the opportunities are simply missed.
You give me the buy box once — years, makes and models, mileage, price ceiling, distance from your store, title rules. Every source on your list is then searched on a schedule, new listings are compared against what was seen yesterday, and only the new matches come through.
Government vehicles are some of the best-documented used cars sold anywhere — fleet maintenance, known mileage, usually one owner — but government auction sites were built for compliance, not for dealers. Listings are spread across thousands of agencies and locations, the search tools are basic, and closing times vary by lot.
The monitor reads them all into one list with the same columns as everything else: year, make, model, mileage, location, current bid, closing time and the lot link. Lots outside your distance or above your ceiling are dropped. The rest arrive with the closing time highlighted, so you only open the ones worth bidding on.
A leased car that comes back is usually offered to the grounding dealer first, then to a closed sale for that brand's dealers, then to the open market. Each step narrows the field of buyers. If you have access to those closed sales, the earlier you see a car the better the price — but closed-sale inventory changes daily and is easy to miss.
Where you hold the account, those sales are read on the same daily schedule, checked against your buy box, and the matching VINs get the same Carfax, AutoCheck and MMR lookups as any other car.
A listing is only interesting if the car is. Matches with a VIN are run through Carfax, AutoCheck and MMR on your own accounts, then a margin is calculated using your recon and transport numbers. Cars that fail your history rules are dropped with the reason logged, so the morning list is short and every line on it is worth a look.
A morning email ranked by margin is the default, with a Google Sheet holding the full history. For fast-moving sources like Facebook Marketplace, an instant SMS, Telegram or Slack alert when a strong match is listed — because a good private-party car is often gone the same day.
Sources that need a login — closed lease sales, OPENLANE, fleet portals — run on your own account. Public sources are read at a gentle pace. Some platforms, Facebook in particular, restrict automated access in their terms; for those the monitor is kept to low-volume alerts on your own logged-in session, and I will explain the risk before you decide. Nothing is ever bought or bid on automatically.
OPENLANE, Facebook Marketplace, eBay Motors, Craigslist, GovDeals, GSA Auctions, Public Surplus, Off-lease closed sales, Fleet & rental portals
Python, Playwright, Selenium, Pandas, Scheduling, SMS / Telegram alerts, Google Sheets API
OPENLANE, Facebook Marketplace, eBay Motors, Craigslist, AutoTrader and Cars.com private listings, GovDeals, GSA Auctions, Public Surplus, municipal and police auctions, and the off-lease, fleet and repo portals you have access to. If you buy somewhere that is not on the list, send me the name — most sources can be added.
Yes. GovDeals, GSA Auctions, Public Surplus and many city, county and police auctions are read daily into one list with mileage, location, current bid and closing time. Lots outside your distance or price ceiling are filtered out before you see them.
Where you have access to closed or captive lease sales, they are checked on the same daily schedule against your buy box, and matching VINs get Carfax, AutoCheck and MMR. Seeing a lease return in the closed sale, before it reaches the open market, is usually where the better price is.
Facebook's terms restrict automated access, so it carries more risk than other sources. When a dealer wants it, it is kept to low-volume searches and alerts on their own logged-in session, and I explain the risk first. Many dealers decide eBay Motors, Craigslist and government sales cover enough private and fleet supply without it.
Daily is standard and suits most sources. For private-party marketplaces, where a good car can sell in hours, matches can be checked several times a day with an instant SMS, Telegram or Slack alert.
It depends on how many sources and how often. A daily monitor across a handful of sources with a morning email typically starts in the same range as a single auction triage build. You get a fixed quote within 24 hours of sending the list of sources and your buy box.