If you've participated in the Pro Touring movement (or even just heard of the term "Pro Touring"), you can thank Mark Stielow.  Mark was instrumental in ushering in this new style of car building via his stable of first-generation of Camaros. But Mark's involvement in the automotive industry goes way beyond that. He has held key roles at General Motors, most recently helping to oversee its racing programs. This is all to say, he's got stories! Listen in to our conversation with Mark Stielow in this episode of the OnAllCylinders podcast!