This would be 35 years ago, the same year I was 10 and in Webelos (just like my son now), these are the cars we raced (Oh I wish I knew where I put these cars 15 years ago when we moved). There is no discussion of how much the rear wheels should be canted (oh yea, there was no internet back then).
And Sporty says the colored wheels were created last year, the idea for them was based on a 35 year old idea.
