I have recently ran into a 79 300 td wagon, but still unsure if I should buy. I've heard these cars can run forever, but I am still interested to see how many miles are on it. the odometer reads 000600, is there a way to see how many times it has flipped over? Also the tranny seems to lag a bit in switching gears. Is that normal for these cars or is it a potential problem? 2 other problems are: the radiator has been patched and it needs a new plug-in heating unit.