it drove home fine the guy just told us it would need an oil change and new spark plugs/ wires and we would be good to go. The inspection was done last month so we felt good about it. Well after my husband OVERFILLED the oil by a quart or so it started smoking (we were arguing if it was white or blue) no sweet smell, a fuel smell. He corrected his mistake ( I had driven it maybe 8 miles no higher than 45 mph) It goes away after the car warms up and is driven about a 1.5. Then he checks the radiator and it appeared to be low or just about empty, so he added water to the brim. The next morning I drove the car, t smoked again like normal and then went away. Well I decided to try the AC, since he converted and charged, then the temp gauge is going up, so I turn the AC off and drive the 1/4 mile home, it never went all the way to hot and when I parked it went back to norml.but when I got out of the car I noticed water from the st. to the driveway. Overflow tank full and not flowing back to