Japan Car Market Data

Carapis provides car-listing data for Japan’s leading marketplaces — Goo-net, Carsensor and the USS export auctions — through one REST API, including the auction grades and condition detail that drive Japan’s huge used-car export trade; Carsensor alone draws around 35.8M monthly visits. Japan is the world’s largest used-car export market, and its listings carry granular condition grading that buyers worldwide rely on to purchase vehicles sight-unseen.

Dominant marketplaces

• Carsensor — owned by Recruit Holdings, one of Japan’s two giant used-car portals (~35.8M visits/mo, Jan 2026) with ~400K+ listings across used, new and dealer stock.
• Goo-net — operated by PROTO Corporation, the other major portal (~24M visits/mo) with ~500K listings and a strong export channel (Goo-net Exchange) for overseas buyers.
• USS Auction — owned by USS Co., Japan’s largest physical used-car auction group. Members-only, moving tens of thousands of cars weekly with structured auction sheets (condition grades R/A/B) that underpin the export trade.

Japanese auction sheets and inspection grades are the standout data: a documented condition score per vehicle that lets exporters and dealers price and bid remotely.

Frequently asked questions