Compared to your normal Humvee, Johnathon Goodwin's modded 2005 H3 Hummer is simply amazing. It gets 60 MPG (compared to 16 for your normal H3), runs on biodiesel (or almost any other oil/fuel available), achieves over 600 Horsepower (instead of the H3's standard 300), goes from 0-60 in five seconds, and uses a "Hydrogen Injection" hybrid system to cut the already low biodiesel emissions in half.
His secret? Combining small military grade turbines (jet engines) with new supercapacitor batteries. His next project is to convert Neil Young's 1960 Lincoln Continental to a hybrid supercar that gets over 100mpg. Wow.
You can read the entire neat story behind Goodwin's conversions at Fast Company. Pic via AutoblogGreen