Water powered car (no kidding)

[fightingquaker13]

http://volokh.com/archives/archive_2009_08_09-2009_08_15.shtml#1249999709


 [1]General Motors claims its new Chevrolet Volt plug-in hybrid will
   get a whopping 230 miles per gallon in city driving, over four times
   more than the current leader, the Toyota Prius. GM readily admits that
   the Volt will not perform as well in highway driving, when the vehicle
   will rely more on its engine on such trips, so its overall mpg will be
   lower, but it could still be the first vehicle to obtain triple-digit
   mileage numbers.

   A car with triple-digit mpg? What's not to like? Even with tax
   credits, many will find the cost to be a bit high. When the Volt
   appears in showrooms next year, it will sell for for approximately
   $40,000. In addition, there are still questions about battery life and
   range. 230 mpg in the city won't be much to shout about if the vehicle
   can't travel that far on a single charge. Nonetheless, the Volt does
   appear to be a significant breakthrough in vehicle technology.

References

   1. http://www.cleveland.com/business/index.ssf/2009/08/gm_says_volt_plugin_hybrid_to.html

Its a step in the right direction, but the 20k difference between that and a Honda Civic buys an awful lot of gas.
FQ13

[tombogan03884]

 About 660 fill ups or 198,000 miles or almost 10 years fuel at today's prices.
In other words for the difference in price you could drive a Civic for free for the average life of the car.