17's on a 1962 Valiant Wagon

It is my belief that eventually we are going to have to go to a larger wheel. Think about how many tire manufactories are depending on the 16 and larger wheels now days. My friend who owns an older model VW bug has a hard time finding 15" tires. He said he used to use Firestone but they quit making them. Then he went to another brand tire from Pep Boys and he said that they quit making those as well. Its getting to where the 15" are slowly becoming harder to get like the 13" and 14". It's not immediately happening but its headed that way.

Absolutely true. Especially true for anything wider than a 215/60/15. Decent number of options for a 215/60, but step up to a 225/60 and you're down to half a dozen choices. Bigger than 225/60? Pretty much down to a BFG TA, if they're in stock. And most of those tires are all season touring tires, almost nothing in the way of true performance tires.

I don't think the 15's will go away, but your options are going to be extremely limited. They're already pretty limited compared to 17's and 18's.