My favorite vintage RC that I owned was the Kyosho Optima. That was a big step up from The Frog I had. The Optima was a box full of aluminum, and plastic joy. Went to my Pop's wood shop hunting for some paint to spray the body with. I'll never forget...Rustoleum white and blue to the rescue. I didn't know any better, nor did I care, probably. The paint held up pretty darn good.
My Optima went through a couple of phases in her life. The fastest phase was when I used the Kyosho 4wd chassis as a "dash for cash" dirt oval racer... 4 minutes of mayhem
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