Have had my '84 733 for almost a year now. Biggest headache, the HVAC system. Has 186K miles on it and still going strong. Was purchased new by a relative who spent a fortune keeping it serviced. Since I purchased it, what work has been done, I have done except for the tranny flush that was done by a garage (good idea for an "unknown" quantity"). I love the car! Other than the engine that sometimes sounds like a sewing machine, it is very quiet for a 17 year old automobile. The ride is fantastic and handles very well on the road. Good luck!!!