A solar car... Sorry I just couldn't resist... As to fuel mileage... The Honda Insight I think is the highest commonly available one out there. Granted there a some super compacts that out perform, but finding one is like winning the lottery and they are a little less than practical The one that is coming out soon and shows promise for being successful is the Loremo Lt. 120+ mpg at ~$25k USD... Lets see if they can deliver :-\
Solar cars count, too! So do electric ones. Because the most MPG is infinite MPG. In 50 years, the majority of us will probably be saying, "MPC.". If you're in California and have around $100,000, the Tesla Roadster is available to you and gets 244 miles per charge.. They are, however, working on a much more affordable car that will be open to more people. The Whitestar should be between $50 and $60K which is still very expensive to us college kids, but will have the potential to go 225 miles per charge. Here's a cool article with some basic info on some other electric cars. http://venturebeat.com/2008/01/10/27-electric-cars-companies-ready-to-take-over-the-road/ Some are tiny, slow and lack a bit in practicality in my opinion. But they are working on it.
I'm talking bout gasoline car. Sorry i should have stated that before!
toyota prius gets 48 mpg in the city, thats the best i know of thats gasoline,
No biggie! The 2009 Ford Ka will get 60 mpg but it probably won't be available in N. America. http://www.autobloggreen.com/2008/05/28/spy-shots-2009-ford-ka-to-include-mild-hybrid-get-60-3mpg/ 1994 Geo Metro XFI gets 53/58 mpg and has claims as high as 80-90 mpg. http://metrompg.com/posts/xfi.htm 2009 Ford Fiesta @ 65mpg...also not available in the U.S. http://www.nydailynews.com/money/2008/09/09/2008-09-09_new_ford_fiesta_econetic_gets_65_mpg__bu.html A Shame... http://mosnas2.blogspot.com/2007/08/where-is-toyotas-es3-100mpg-eco-spirit.html What's funny is that the '94 Geo Metro outdoes even today's hybrids.