Yes, hard to believe by looking out at my parking lot and what I notice on the freeway, but pickups are about an eighth of the market, according to this: http://online.wsj.com/mdc/public/page/2_3022-autosales.html

It's amazing that a "cross-over" is considered a truck, when there's practically nothing in common. At least the SUV shares the same chassis as a truck in most cases.

Going back to Jobs point, I would be interested in some historical numbers. The truck's healthy market share might just be due to the popularity of the SUV.