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Highlights Tesla inventory cars matching configurable VIN rules. 🔋 Find the HW4 Tesla you actually want, faster. A wave of pre-owned Teslas is entering the used market as 2023 leases come back through 2026. If you're shopping specifically for a Hardware 4 car — the only path to future Full Self-Driving upgrades — there's a problem: HW4 isn't labeled anywhere. You have to read the VIN. On every listing. Manually. Tesla Inventory Helper does the reading for you, wherever you shop. ✨ On Tesla.com A soft amber glow lights up the cars that match what you're looking for as you scroll, so the right listings find you instead of the other way around. Works on Tesla's used inventory and order pages, in any country. Comes pre-configured to flag HW4 cars, and you can tune it from the toolbar popup any time. 🚗 On popular third-party car-listing sites When you land on a Tesla listing on a supported third-party site, a small dark panel appears in the top-right corner showing what the VIN actually means: What it is — Model S, 3, X, or Y What year it really is — verified against the VIN, not just what the seller wrote Where it was built Roughly where it sits in the production run Whether it's likely HW3 or HW4 No more wondering whether a "2024 Model Y" is really a 2024, or whether a used listing is the HW4 you've been hunting. 🔔 Save a watchlist and catch changes Found a car worth keeping an eye on? Save it to your watchlist and let the extension check back for you. With one click it revisits each saved listing and tells you what moved — price drops and whether the car is still available — so you can act before someone else does. Everything happens locally in your own browser, on the listings you chose; nothing is shared. 🔒 Private by design Everything runs locally in your browser. No analytics, no servers, no tracking. The extension only reads pages on Tesla.com and a small set of car-listing sites — Chrome will show you the exact list when you install. ⚠️ Disclaimer Independent third-party tool. Not affiliated with, endorsed by, or sponsored by Tesla, Inc. "Tesla" is used only to identify the VINs the extension recognizes.