The MiniCat and the tiny AirPod are Tata Motors' prototype compressed air vehicles. The MiniCat is a minivan that seats six and features a lightweight fiberglass body.
While neither the MiniCar nor the AirPod can be found in the Tata Motors product lineup as of 2015, the cars are expected to be highly efficient and comparable to similar green vehicles. Operating costs for the MiniCat are less than 10 percent of the costs of operating regular gas-powered cars, notes InvestmentU. Compressed air cars also run cleaner than a regular gas-powered car, with an oil change only required about once every 30,000 miles in the compressed air car, compared to every 3,000 miles in a gas-powered car.