Thanks, Rory. Did Bill still participate after Ivan went to Modern Motors? According to the link Bill broke a leg and Ivan "won the race" -- the 1973 Ensenada 300. Not sure if that was overall or a class win.I think the story goes that Ivan and Bill were high school friends and Bill asked Ivan if he wanted to co-ride with him at a race. Turns out Bill got hurt before the race so he let Ivan race. Ivan placed well (3rd I think) so Bill let him race a few more times and Ivan started winning. I think that's when he Bill decided to become just the car owner until Ivan was picked up by Modern Motors. I "THINK" that's the story....