Gluckman, David (April 2008). "2008 BMW M1 Homage Concept". Automobile Magazine. Source Interlink Media, LLC. Archived from the original on 1 May 2008. Retrieved 29 April 2008.
autoweek.com
Kable, Greg (27 April 2008). "Homage to the master". Autoweek. Hearst Digital Media. Retrieved 17 September 2020.
Gluckman, David (April 2008). "2008 BMW M1 Homage Concept". Automobile Magazine. Source Interlink Media, LLC. Archived from the original on 1 May 2008. Retrieved 29 April 2008.