India’s Tata Motors is pushing technology for compressed air to power cars forward with its project to build “Airpods” — zero-pollution, cute-as-a-bug smartcars that zip along at 40 m.p.h. via the magic of squeezed air, The Atlantic Cities reports.

They are built with pneumatic motors that use pressurized air to drive pistons.

The mid-sized model fits three passengers, although one must face backward. Its tank can hold 175 liters of air, which a driver gets either at a specialized fueling station or by activating an onboard electric motor to suck it in. Its makers say that filling er’ up will cost a paltry €1, and that a full tank of air can last for roughly 125 miles.