Mark,Yep by the time I hit the formative years of my youth, cutting edge technology was the 8 track tape - a great idea - poorly executed.
I saw an ad in an old magazine one time for (now get this) an in car 45 rpm record player. I keep the weight on the LP player on the old HI-FI at about 1 - 1.25 grams. I think in order to play a 45 rpm record in a car you'd need a couple of kilos on the stylus....tailings like those off of a lathe must have peeled off the vinyl when you played this contraption....you have one of these players old timer? grin