Photos: Frankfurt Auto Show
Germany Frankfurt Auto Show
Credit: AP
CEO of BMW group Norbert Reithofer stands between the BMW i8 concept car, right, and the BMW i3 concept car at the 64th Frankfurt Auto Show in Frankfurt, Germany, Tuesday, Sept.13,2011. The fair opens its doors to the public from Sept. 15 through Sept. 25, 2011. (AP Photo/Michael Probst)
