There’s a lot of hype and incomplete information in the article. Wanka may go broke offering lifetime free “Salt Water” as the car does NOT use ocean salt water for power… but a mix of rare metal salts in solution. It is a rechargeable liquid battery that you can either recharge electrically… or fill up on new electrolyte. Here’s a clue:
http://en.wikipedia.org/wiki/Vanadium_redox_battery
Sexy looking car, though. I would like one. I Wonder how the liquid battery does at -40 degrees F. in the winter, though.