Compressed air auto
Article here.
Another cool entry in the oil-free car sweepstakes. Like a lot of "cars of the future," just big enough for me to get maybe one leg into, but what the hey, in a smog hole like Calcutta--or Los Angeles--this will be solid gold.
Haven't done any numbers, but I think I'd have to see 300 km off one charge to believe it.
Compressed air can be dangerous, but I have worked with high-pressure gases, and properly-designed filament-wound tanks can be punctured without exploding or fragmentation.