One simple thing any automobile or truck driver can do to improve fuel economy is ensure that the tires on their vehicle are inflated to the proper pressure. It also turns out that letting the air out of them entirely may be one of the next big things in advancing the cause of sustainable mobility.

Last week, iconic French tire maker Michelin disclosed the prototype for a generation of “airless” tires that it will begin testing later this year on passenger vehicles in collaboration with General Motors. Called Uptis (which stands for Unique Punctureproof Tire System), the tires are made up of composite materials and use a unique design to bear the weight of the car at high speeds.
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