Racing WAS different then
Like the Burgess Shale, (Cambrian Explosion of forms of life), it was a time of experimentation and development.
Different teams raced DIFFERENT cars, rules were looser.
And I agree with the review about "rag tag operation build with blood, sweat, tears and severe sleep deprivation"
Maybe that's why I liked bike racing so much - it had the same aspects.
And "creative thinking" was rewarded, not punished, rules were the starting point, not the end point.
Amazon.com: Mark Donohue: Technical Excellence at Speed : "So, it's not perfect, but Mark Donohue is a beautiful book that adds substantially to the historical record. Mark raced during a period of great change, due both to technical freedom and the increasing involvement of sponsors and manufactures. If you followed racing during the 60's and 70's, then this book with bring it all back. And if you're younger, it will explain how today's uber-teams evolved from rag tag operations built with blood, sweat, tears, and severe sleep deprivation. 'Mark Donohue' belongs on the bookshelf of every racing fan."