My collection of Hotwheels catalogs includes multiple copies from different issues and countries. I’ve scanned the main cars pages here as a reference for my collection. I’ve split the galleries into the main classes as named in the 1970 catalog.
The back covers of the two editions show a huge difference with the later one showing the Hotwheels Club application. What did you get? Have a look at the club members kit in my collection. Purchased from the original owner.
The splitting of the cars into groups had started earlier but this catalog identifies them clearly.
I've used these groupings to split my collection into manageable pieces.
The Heavyweights first appear here and were always a favourite of mine.