It's hard to believe that a car a little more powerful than the average Bugatti Veyron (if not, reportedly, as well engineered) would run purely on E85 ethanol fuel, but here it is. Leaving aside the long-term concerns about biofuels, that's a move in a sustainable direction that is still unusual for a supercar.

the “long-term concerns” about biofuels are: a higher rate of greenhouse gas emmisions than gasoline, depletion of scarce water and massive global starvation. you should never, ever leave those concerns behind.