A car which operates on air instead of petrol and has no polluting emission has been invented in the United States.

A California, Claude Leed, the man behind the invention, said his car might solve ecological problems, as well as help the energy crisis.

Mr. Leed conceived the idea more than 20 years ago when he attended a party in New York City ... he saw someone blowing up a balloon and letting it go.

His system works on the same principle. All that's needed are filled air tanks. He said two 7,500-pound air tanks would cover a journey of ???00 miles (965 kms).

(This film includes an English commentary by reporter Roberto Salinas which is for use. A transcript is given overleaf.)