I remember seeing this in Boy's Life when I was (much) younger.
For a totally unrelated reason, I was perusing the Boy's Life magazine archive and ran into it again (along with a lot of other slot racing material).
It was promoted in late 1965 and early 1966, and reads:
"The Strombecker Internationals, world-wide racing competition is open to everyone 18 years of age or yournger.
"Nothing to buy! All you do is race your car - any 1/32 scale car - against others (winning cars need not be Strombeckers) in your neighborhood or town.
"Race your model cars for trophies... for fame and fortune at the official STROMBECKER RACEWAYS CENTER near you. Competition in your area will be starting soon; neighborhood champs go on to compete with guys from other cities and towns in the big Regional Racing Meets to be held in early 1966. Regional winners then compete in the All-American Racing Meeting in Detroit. And then the big one! Next spring a lucky guy, along with a parent or companion, will fly to Paris via Air France to compete in the Strombecker world-wide International Racing Competition!"
So, thousand of big trophies, scholarships, and a 1966 Plymouth Barracuda were all on the line for the "champions" with one "lucky guy" winning the big trip to Paris.
After these two page spreads, the whole thing, and most of the slot car advertising, seems to vanish..
Does anybody know who won, what? And who was the big lucky international champion guy?
All that "fame and fortune" seems so enticing
As an added bonus, the list of "Official Strombecker Raceways" provides a window into the proliferation of the commercial Strombecker brand across this great country of ours. in 1965.