DONT DO IT! Many auction vehicles mask the fact that there are state penalties for unpaid registration, and often in other states. If the auction is not a dealership, it can be even worse. Before you bid $100 and find out you owe DMV $1,000, you can run the VIN number at the DMV, BUT, you are also liable for unpaid sales tax from previous owners who may have bought but not transferred. I am a licenced dealer, and once in a while would take a trade in that had so much in penalties that I would either give it to charity, or have it transported to a state where there were no penalties on that particular vehicle. DONT BUY A VEHICLE WITHOUT A TITLE AND A DMV PRINTOUT UNLESS YOU BUY IT FROM A CALIFORNIA DEALER AND HAVE AN AGREEMENT IN ADVANCE IN WRITING ON THE COST OF THE REGISTRATION!
IT IS NOT WORTH TAKING A CHANCE!