How did Toyota increase the fuel-efficiency of the new Prius?

Oh, you didn't hear? The Prius is now a motorcycle. I kid, I kid. By increasing the torque produced by the engine, the new engine actually runs at a lower RPM on the highway, thus using less fuel. Toyota also spent more time wind tunnel testing this car than any other Toyota before it, making it the cleanest aerodynamic profile of any mass-produced vehicle on the road.

Photo Courtesy of: Toyota