I tend to agree with iannez - the Passat is a "normal" car and will cost less if it goes wrong. I bought a 4.5 year old C5 last year because (a) I like the comfort, feel and quirkyness of them, and (B) the equivalent Passat, A4, Rover 75, even Mondeo, would have cost a lot more © I found a 2.2 Hdi SX with all the goodies like cruise control, Hydractive 3 adjustable suspension. All the things you suggest to keep it reliable are worthwhile of course, but actually the oily bits on a C5 are very reliable. It's the electrics and more annoyingly the electronics which will go wrong! I bought a Warranty Direct independent warranty for mine and within 3 months I had to claim for two central locking motors on the passenger doors which failed. This paid for the warranty! Subsequently the things which have gone wrong have not been covered - turbo pressure switch, egr valve/vac solonoid - all of which lead to the dreaded "Anti-Pollution Fault" message appearing on the computer readout, which can then take a while to correctly diagnose. Have a look at the Warranty Direct website (UK only) and they give a full database of how relaible each car is over here - the C5 would have fared very well if it weren't for the Electrics problems. Good luck whichever car you go with! ;)