I will be repeating what has been said above several times by saying that K1300S is the best all-rounder and/or sport tourer (with the emphasis on sport) I see on the market at the moment. I think the only thing I may add is I would not recommend it for the track. Though its still good for the twisties, it is simply too much of a bike for the track. It is too "composed" and too focused on its mission: sport-touring. Not pure sport.
2009 BMW K1300S - streets
2004 Honda RC51 - track