I read a great book he wrote about the original Cannonball Run. He and Dan Gurney organized it as a form of protest over the 55 mph speed limit.
I read the same book. He put all of the stat tables in the back and what is amazing considering everything we have been told about "Speed Kills" public safety laws is that with the cars of the Seventies they had people going coast to coast in less than 30 hours with no fatalities and very little bent sheetmetal.
kind of puts the lie to speed limits as a safety measure.