Well I have taken the plunge and after much looking found a nice unmolested car which has good specification.
Had very little time from picking it up before departing for my annual trip to Switzerland in it. Probably not the best opportunity to draw any long term conclusions regarding fuel...
Have the lead now and using my iPod classic, the RNse 2 is much better than the MkI and shows more info on tracks but still a bit dated.
Miss the dab I had in my A4. A few years ago but I believe you can get an adapter for the AMI.