I was in London on holiday last week and specifically made a trip to the Mayfair Audi showroom in the hopes of seeing an S-line in person, since the U.S. won't be getting any A5's until some time early next year. I was particularly interested in checking out the diffuser on the rear bumper that I've seen in various S-line pics. I
assumed the S-line would be available in the UK given that the A5 has been out for a while there. But, after talking to one of the guys in the Mayfair Audi showroom, I learned that the S-line isn't available there. Currently, they only get the regular A5 and the "Sport" version (which is essentially sport seats and sport suspension…as explained to me). The "Sport" version does not include any special front/rear bumper body treatment. As for whether the S-line will be available there some time in near future, I do not know the answer. I suggest asking your dealer to confirm.
As for the various pics of S-line seats you've seen, it appears that different countries have different specs for the S-line seats (e.g., some with cloth in the center of the seat, some with leather in the center).
It is all quite confusing since there is not always consistency from country to country on certain options.
