Livestrong claims it's closer to 50 calories to pedal a bike a mile at over 15 mph. I suspect it's less, but lets pick a number and say it's 30 calories per mile. How much money is that? Gotta be at least 10 cents....which is about what my car needs in gas.

lol...pedaling a bike and driving a car is a wash, dollar per mile, energy wise.