November 16, 2017

No More Spare Tire?

Like many other features that were once common in cars (ignition keys, ashtray, cigarette lighters, and vent windows), the spare tire is starting to disappear in new cars as well.

According to a New York Times article, this is part of a trend that has seen full-size spares shrink to smaller “doughnut” spares. The upside: less weight and better gas mileage. The downside: no spare. Of course thinking about tires and spares leads to a lot more engineering solutions to think about: run-flat tire design, self-sealing tires, providing leak repair kits and compressors. Of course, with surveys showing that 20 percent of drivers don’t know how to change a flat tire, maybe our cars just need to come with roadside assistance.


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