Egger was born in Oberstdorf, Germany, and studied Design at the International College of Arts and Sciences in Milan, Italy. In 1989 he graduated as an industrial designer. Egger began his professional career in 1989 in the Design department at Alfa Romeo. In 1993 he was appointed Chief Designer of Alfa Romeo.
In 2001, W. J. Egger was appointed Head of Design at Lancia. In the same year, however, he returned to Alfa Romeo as Chief Designer. Among the cars developed by Alfa Romeo under his direction were the Nuvola Concept, 156, 166, 147 and 8C Competizione..
On 6 Dec 2013, Egger left Audi design. Egger was replaced by Walter DeSilva who became chief of design for all of VW's makes: Porsche, Audi, Vw Skoda, Seat. In order to lure DeSilva to VW, VW added three Italian makes: Lamborghini, Ducati and ItalDesign coach house.
- "Wolfgang Egger will be Audi Group Head of Design". carbodydesign.com. 18 February 2007. Retrieved 2008-03-13.
- "Who's Where: Marc Lichte to head Audi Design, Wolfgang Egger moves to Italdesign". cardesignnews.com. 6 December 2013. Retrieved 2013-12-06.