UKPassats

Hi guys still in a hunt for a new car, I've got 5k budget but can't decide what car to look I should go for. Was looking into Audi a4 b6 2.0 fsi (thought its a good idea to go for an fsi in the long run in case of any turbo problems). anyone had any expericence with these machines and what the running cost are like?
Also I've got my eyes peeled on the New shape Mazda is220 but don't know much about them compare to vags cars.

Any other cars would yous guys recommend?