You have the same stance as I stated here..."So you need to be able to produce more energy than the weight and drag of the turbine would take from the car and then also have that ratio be high enough to even warrant doing it. "

As you said, nothing is for free but if you can actually come up with something so efficient that it can create more power than it takes to use then you are onto something. IE turbos and superchargers on real cars. They do actually take power to make power but the gains are way above the power used.

Anyhow, we are on the same page. I still am just glad to see some people in school using their heads and taking some initiative to try something new. If it does not work, you have still gained knowledge. If it does work out, Terrific!!