Just got my Autumn copy of the complementary Audi magazine. It gives details of a new A6 drive train option on sale early next year. Called Ultra it includes a new 190ps 2 litre Diesel with an S-tronic auto option. 119g/km £30 road tax. It quotes an S Line spec that sounds much the same as the current cars, except that S Line only comes with the S-tronic. SE is available as a manual as well.