I'd vote for Acura's five-door ZDX.
The ZDX is a cross between a crossover (tall vehicle height) and a sporty five-door hatchback, as in car. It's an odd duck. The ZDX went on sale late last year and rang up 79 sales.
Acura's web site is still pushing the 2010 model, which stickers for around $46,000.
Are there other candidates for this dubious distinction?