Profiles in History is auctioning off over a 100 Back to the Future props but the one that's got me—and about the entire rest of the world—shaking in my boots is the DeLorean used in BTTF III. It's one of only seven DeLoreans used throughout the entire series.
The DeLorean being auctioned off is the one that Marty McFly "used in the 1955 drive-in movie scene when Michael J. Fox drives it into the past and lands in 1885 to find Doc". The auction house says it's one of only three to have survived after filming. I've always said when I could afford a DeLorean, I was going to buy one but... I can't afford this one. The BTTF III DeLorean is expected to fetch $600,000. Gulp.
I guess I'll have to look past the DeLorean and check out the other stuff which ranges from "original costumes, the Tales From Space comic, Doc's burned toy Cadillac, Clock Tower cables, Gray's Almanac, the Doc Brown committed/commended newspapers" and drum roll please: a full set of all five types of hoverboards. Hoverboards, you are mine. The auction starts in December so I'll be saving every penny until then. [Profiles in History via LA Times]