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.
Cascade Tunnel was created in 1900.
Hægebostad Tunnel was created in 1943.
Yamate Tunnel was created in 2007.
Karisaka Tunnel was created in 1998.
Rya Tunnel was created in 2011.
Winston Tunnel was created in 1888.
Malinta Tunnel was created in 1932.
Shiziyang Tunnel was created in 2011.
Sumner Tunnel was created in 1934.