Not much has gone wrong. I must say I'm one of a few lucky owners.
Front tyres don't last at all.
Following the service book is expensive.
I have had a V6 saloon for about 4 years now. While it gives me the confidence to stand against anyone even motorbikes, It chews up its front tyres like no other car driven before. They aren't that cheap either. I do a lot of miles this is a major downside for me.
Brakes are crap, but once you get used to them they are fine. Just try to push them down even when the ABS cuts in.
No problems so far apart from Front tyres. Tried Michellin, Pirelli and Goodyear. Suggestions would be appreciated.
Try Michelin Energy tires, if you drive below 100 m/h because they are not sporty.
How much air is into your tires? I had this problem with my 2003 V6 Laguna and it was solved by adding presure to the manufacturer max allowed, 39psi and got rid of the problem.