I learned a lot from my last used car purchase. Don't be careless when transferring the vehicle license. Both buyer and seller need to go to the DMV together, bringing your ID card, original vehicle license, and sales contract. You'll need to fill out an application form on-site. The car also needs to pass a simple inspection to check for any traffic violations - otherwise you might get stuck halfway through the process. The whole procedure takes about half a day, with costs generally around a few hundred yuan, including transfer fees and administrative charges. I recommend negotiating the price clearly and signing the contract before the transaction to avoid disputes later. I suffered losses myself by not checking violations thoroughly, making two wasted trips. Remember, DMVs are open on weekdays - don't go on weekends when they're closed. Get it done early so you can drive with peace of mind.