瓜子卖车 (Guazi Maiche) is a mobile application designed for buying and selling used cars through national auctions. The platform promotes competitive bidding where the more buyers participate, the higher the prices go. It serves as a major marketplace for pre-owned vehicle transactions, attracting buyers nationwide for intense bidding wars.

The app offers three key selling commitments to ensure user rights protection. Firstly, it guarantees official vehicle inspections with free on-site checks. Secondly, it promises transparent pricing to avoid verbal contract breaches, with auction results updated in real-time on the app. Lastly, it commits to a smooth transfer process within 30 days, eliminating delays and negotiation tactics post-sale.