http://www.vapormusicgroup.com They have a video of this commercial. They specialize in commercials and radio work, and Audi commissioned them to produce the music for the "Audi - Tunnel" commercial.
Am Tunnel was created in 1993.
Milford Tunnel was created in 1839.
Audi Quattro was created in 1980.
Audi India was created in 2004.
Audi MedCup was created in 2005.
Audi Front was created in 1933.
Audi Cup was created in 2009.
Audi Channel was created in 2005.
Audi TT was created in 1998.
Greywell Tunnel was created in 1792.
Eisenhower Tunnel was created in 1979.