Re:Well amount of Energy != Green (Score 1)

As bikes/HPVs are claimed to be the most energy efficient form of transport in terms of speed or distance per horsepower of energy put in, I wonder how well they fair when taking human energy efficiency into consideration, when spending a whole day on my bike, I can easily consume 4-5000 calories and only go 80 miles. How would this compare to a car travelling at it's most efficient speed in terms of energy input in petrol?