I love it! F1 was at its best during the Jack Brabham and Dan Gurney days.
Check this link to read an excellent sort of diary that Brabham wrote during the 65 season.
http://fp.gplegends.plus.com/articles/JB1.htm He was such a cool guy!
Be sure to click "Link to next article" at the bottom to continue to the next race. It provides some great insight to the sport back then.