big wheels

Really big rims look stupid on any car, but so do the clothes some people wear, so let them roll on what they want. A bigger concern is when they mess with the suspension, usually a lowered car, and you see them rattling their teeth on the freeway and barely able to stay in their lane. Of course the high-rise "redneck Cadillacs" are no safer. Riding on the factory designed suspension is smart.

I don't see small tires going away. There are many small cars with 14" and under wheels. The problem is that most econo care use narrower tires than we like. I expect some hybrids will have suitable tires since they are pretty heavy and need a wide contact patch. Check tire sizes on new cars in parking lots or at dealers.