This is a total breakdown of cost of cars, fuel economy, etc...
It is very in depth. You guys might get a kick out of it.
http://www.omninerd.com/2005/11/11/articles/41
(I will cut to the end for you)
Conclusion
While no "green" person would ever advocate buying a hybrid for purely economic reasons, it is painfully obvious that existing hybrids lack the ability to make up for their steep prices with gas savings. While a hybrid would present significant savings over something like a new Ford Super Duty, you would always save more with any of a number of economy cars.
Hybrid technology is just entering the mainstream, however. As gas prices rise and hybrid technology improves and cheapens, don't be surprised to find hybrid owners in the green.
__________________
__________________
2008 EPA adjusted:
Distance traveled by bicycle in 2007= 1,830ish miles
Average commute speed=25mph (yes, that's in a car)