Red Bull is a drinks company, period. They not only sponsor the air races (which, unsurprisingly, are of most interest to PPruners), but also all other sort of 'extreme sports', such as speed skiing, guys 'flying' with wings attached, etc, etc. It's part of their branding strategy, which, dare I say, has proved HUGELY successful. Now, one of the owners, a chap called Mateschitz (sp?), apparently IS an aviation buff and had a hangar replete with all sort of exotic / restored flying machines constructed at Salzburg (LOWS) airport.
AFAIK, the aviation connection ends there.