2005 sebring, cylinder 3 misfire

I have owned 3 Chrysler cars my whole life and every 1 of them has screwed up severely on me just saying my 04 PT cruiser after 1 week the radiater went out the thermostat went out and the engine mounts all 4 was busted out also and still over heats. My 2001 chrysler sebring convertible engines knocking the tranny is slipping. My 2005 Chrylser sebring contour sedan was running fine and then Boom will not start at all now. The lights come on everything but it won't turn over it was literally running like 5 min tops all together right before I shut it off I locked it w my keys my bf unlocked it with his and then relocked it with his and now I have to figure out what's wrong with it. My advise is to never buy from chrysler go for a much different maker