Save any used-car listing to one watchlist. Track price & relisting, compare the market, and get help closing the deal.
Users
6
−2 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#229K
#192K among extensions
Version
2.1.0
updated 11 Sep 2026
Users
monthly, 3 months
Latest, 15 Oct 2026:6 usersMove the mouse over the chart for any month
Ratings count
monthly, 3 months
Latest, 15 Oct 2026:1 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About CarPeriscope - www.carperiscope.com
Car buying is stressful and adversarial — CarPeriscope puts a knowledgeable friend in your corner.
Save any car you're looking at — on a marketplace, a classifieds post, a dealer's own site, anywhere — to one clean watchlist with a single click. CarPeriscope keeps a permanent record of each car (photos and all, even after the listing comes down), tracks its price and days-on-market over time, and flags the games: price drops, relistings, and cars quietly sitting for months.
For any car you're serious about, CarPeriscope helps you close it well:
• Fair-value read and comparable listings — see where the price really sits vs. the market.
• Vehicle report — title/1-owner flags and open safety recalls.
• "Talk it through" — an AI co-pilot that knows this exact car and coaches you on what to offer, what to ask, and what to watch for.
• Draft a written offer and ready-to-send messages to the seller — you review and send.
No account key needed in the extension — just sign in once at carperiscope.com. Free to track your first few cars; the Co-pilot plan unlocks unlimited cars plus the negotiation tools.
CarPeriscope is a buyer's advocate. We send you to the seller's listing — we're on your side of the table.