See the margin before you place the bid

At Poljects, we build and operate AutoCompare, a browser extension and dashboard for professional car dealers. Buying at auction means deciding within seconds whether a bid still pays off. Until now that meant opening a second tab, searching the market by hand and estimating. AutoCompare puts the answer on the auction page itself.

How it works

The extension recognises the vehicle on the auction page, including model, variant, year, mileage, fuel, transmission, power and tax type, and pulls comparable listings from the market in real time. Estimated profit, margin, break-even bid and a risk rating appear right next to the bid, so nobody has to leave the auction.

What dealers get

• ✔️ Margin and break-even bid directly in the auction window
• ✔️ Live comparable listings instead of a stale price database
• ✔️ Traffic-light badges across auction lists, so a whole catalogue can be triaged before opening a single car
• ✔️ Filters for mileage, year, power, fuel and value-relevant equipment
• ✔️ Own cost assumptions for transport and preparation folded into the result
• ✔️ Price-check history, team accounts and seat management

Onboarding without a manual review queue

AutoCompare is sold to businesses only. New customers upload their trade registration, and a vision model classifies the document within seconds and unlocks the trial. Subscriptions, trials, seats, discount codes and referral credits run through an integrated billing flow, so nothing has to be tracked by hand.

Built for speed and for data protection

The result has to be there while the auction is still running, so the whole path from page detection to market comparison is optimised for latency. The extension renders in an isolated shadow DOM so it cannot break the auction site, collects the minimum data required, and runs on infrastructure inside the European Union.

Where it stands

AutoCompare is live, published in the Chrome Web Store and on Firefox Add-ons, and released continuously through a staged pipeline with a separate testing environment.