3,145 Miles Per Gallon (0.074 litres/100 km)
by Michael Graham Richard, Ottawa, Canada 
on 06.26.06
Engineering students from the University of British Columbia (UBC) have won the Society of Automotive Engineers Supermileage Competition on June 9, beating 40 teams from Canada, the U.S. and India, with a vehicle that achieved 3,145 miles per US gallon (0.074 litres/100 km). It's the fourth time in six years that the UBC wins first place. In ideal conditions, their 2006 vehicle can do Vancouver to Halifax on a gallon (3.79 litres) of gas, costing less than $5 at the pump. The team captain, Kevin Li, says: "We achieved this level of efficiency by optimizing many aspects of the vehicle design, including: aerodynamics, light-weight construction, a small displacement engine (54 cc), and conservative driving habits". Of course, we're not about to see such cars on our roads, but we can bet that all students involved have learned many important things that they will take with them once they're out of school, and it's also safe to say that big players in the industry are paying attention for breakthroughs and tricks that they can apply to their own vehicles. ::Supermileage Competition, ::UBC Engineers Create Vehicle that Travels from Vancouver to Halifax on a Gallon of Gas, via ::Jalopnik
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1500 miles per gallon @ $3 per gallon of gasoline vs 20 mile charge cost 5 cents.
Electric bikes typically travel at speeds of 10 to 20+ miles per hour and go up to 12-20 miles charge. Charging your electric bike for four to six hours uses 5 cents worth of electricity from common 110 wall outlets. The electric bike power can give you a break from pedaling or supply more power when you're going up hill.
http://www.bicycles-electric-bikes.com/bike_to_work.htm
That would cost you $7.86 and you would have to stop every 20 miles and charge for 6 hours. Not good to compare apples and oranges.