well, camaros so long as they have been taken care of are extreamly rugged and reliable. check the oil to see if its sludgy, or if its clean, smell the trans fluid, it dosnt smell good to begin with, but if its buned you will know it, thats a clue as to the transmition condition. look it over for obvious signs of shade tree mechanic work, zip ties and loose wires anywhere, check the intake for leaks, look at the tires for signs of agressive driving, start it up, listen for any knocking sounds or such, should run smooth, check mileage, the basics, then take it for a drive, no radio, windows up, over rough roads to listen for any clunking from the suspention or body. i wouldnt pay any attention to interior squeeks the camaros are very well known for them, took me an entire three day weekend to completely gut my interior and track down and fix by hand every point of squeek or vibration. lots of personal work invovled. but worth it. for my two cents so long as teh car is in good shape, 3k is a great price for it.