Dr. Ian Robertson, Member of the Board of Management of BMW AG, Sales talks about BMW M3 and BMW M4 at 2014 North American International Auto Show. Facebook : https://www.facebook.com/autoworldshow Twitter : https://twitter.com/VentunoAutoWrld Youtube : https://www.youtube.com/user/VentunoAutoWorld A Ventuno Production : www.ventunotech.com