Clarification and corrections
•The June 17 cover story, "Can this car save the world?" omitted the fact that the vehicle designed by Oliver Kuttner's company, Edison2, runs on E85, a mixture of 85 percent ethanol and 15 percent gasoline. Also, Oliver Kuttner raced in the International Motor Sports Association, now known as American Le Mans series, not Formula One. Finally, the winner of the first X Prize, SpaceShipOne, flew nearly 70 miles above the earth but did not actually orbit.