Buying a B6

[itchy]

Hi,

I have a B5.5 at the minute but the HG is gone and I'm thinking of upgrading to a B6.

Is there a buyers guide anywhere?

I've read about the parking brake and the injectors and how they were fixed, but was this from 2007 onwards? So I'm right in thinking I should buy a B6 that is 2007 or younger?

I also read about the CR engine, what is this and which B6s did it come in?

Anything else?

Thanks,

Nick.