Dann and Yvan turn the tables on Mark Greene. After Dr G, Dann, and Yvan have been guests on Cars Yeah, we bring Mark onto the Optimum Synergy Podcast. Former CEO of Griots Garage, and host of Cars Yeah share some fun stories and insights into the detailing world. Then meet Andy Rogers owner of Attention to Detail. A man who has made success in small town, midwest America. Coat em if you got em!