Opel decided to crash Volkswagen's party at Worthersee this year. As you probably know, each year, Volkswagen fans have a huge gathering that takes place Worthersee, Austria. During this year's event, Opel gave away 3D glasses to unsuspecting VW fans. They accepted them gladly thinking they came from Volkswagen. When the fireworks show started, the only things they could see through the 3D glasses were Opel logos. This trick was probably meant to steal some VW customers, but we're pretty sure Opel managed only to make them even stronger in their beliefs.