I looked into buying one last year but was scared off.I talked to some reputable mechanics who really didnt have horrible things to say about it.It has got to be better than the Jaguar V12.One thing i would make sure however is to have full mtc records with the car and get one with the lowest miles.Also, if i was back in the market i would seriously consider the 840CI.It is newer and has the V8 engine which is probably cheaper to maintain and almost as powerful.