I do have a A6 in Qatar for the past 5 years. I avoid Buzair as a garage and I am keeping with Gulf Automobile, the one that used to have the concession.

Yes it is costly to repair, but after over 100,000 km it is still running great and still as new. Can't say that for other ones.

As far as resale, no cars, except maybe Honda, have a real resale value here, but I think it still have 1/2 its value.

Hope this helps