Those tires are designed for high speeds.
If you use foams on high speeds, the tire good be ripped apart.
There are rubber tires for Tamiya's F1, I tried them out A while ago (on my F1).
I've found out that they give more grip on dusty and slippery surfaces.
Like on parking lots, but on the tracks I've been there wasn't much difference with foams.
They do seem to last longer and the diameter stays about the same, but they are quit heavy compared with foams.