I purchased my 1990 toyota camry 10 years ago. I love that little car. But, sadly, it's at a age now where mechanics are saying there's no point in repairing it (needs a new head gasket and who knows what else). So, I want to stick with Toyota Camry. But I'm having a hard time finding them on Craigslist. I found some, though, through dealers. They are CPO. Does that really mean anything? And if I buy it through a dealer, is there anything I need to know first? Will I need to take it into my mechanic or because it's CPO, it's already gone through vigorous testing?