Now, I am all for home engineering, and redenck, shadetree ideas (done a few myself), but that looks like a Heating and AC attempt at automotive excellence.
FUGLY is the word I am groping for.
I want to be on the sidelines when he hit's that speed for the first time and encounters the aviation explanation of "Lift", when he sees and hears a red flash, and a loud pop, then nothing as the hood is now custom wrapped as a windshield cover.
I hope nobody gets hurt in this physics experiment.