In 1989, the Hollywood blockbuster Back to the Future II envisioned a 2015 filled with flying cars, self-fitting clothes and hoverboards, to name but a few of the movie's forward-thinking ideas. So far, none have come to fruition, at least in a commercially viable manner, which has us wondering: Given the same 26-year time span as in the movie, what cars will we (or our relatives) be collecting and driving in the year 2041?

Yes, this is a two-part question, since a future without both daily drivers and collector cars is too bleak for us to imagine. First, let's tackle the issue of daily drivers: What will power them? Solar or wind-generated electricity? Hydrogen? Some means we haven't even conceived of yet?

What's the future of classic auto enthusiasm?