WörtherseeWörthersee is an alpine lake in southern Austria that each year becomes home to more than 200,000 custom Volkswagen Group car enthusiasts.

Backed by Volkswagen Group, the Wörthersee GTI-Treffen motoring festival showcases the most radical Volkswagen, Audi, SEAT and Skoda custom-built cars and is a key date in the European VW enthusiast calendar.

Held in the seaside town of Reifnitz, it’s been running since 1981 (usually in May) and the 2015 Wörthersee event will be the 34th event.

Europe’s largest event dedicated to Volkswagen and Audi is used as a showcase by the Volkswagen Group for its apprentices and interns: they usually create Wörthersee specials as official projects backed by the firm.

This year, Skoda will be showing five apprentice specials at the 34th Wörthersee GTI-Treffen, while Volkswagen will be showing a Golf GTI Clubsport concept and Audi has confirmed a TT Clubsport turbo concept.