The push toward autonomous cars is gaining critical mass, with the disabled and the visually impaired perhaps benefiting first from vehicles that steer themselves. Kids who hate driving are also a factor.
With fewer and fewer Americans actually able to change a tire, and the auto industry looking to save weight and costs to meet fuel economy targets, it's not surprising that we're getting run-flats and pump-up kits.
Bridgestone makes fuel-efficient, low-rolling-resistance tires and leads the industry in environmental innovations. And thanks to burgeoning demand, it also makes huge truck tires for tar sands oil production and mountaintop removal mining.