American Honda Motor Co. Inc.’s Acura brand will debut a 4-door sport coupe prototype, the ZDX, at next week’s New York auto show.

The model, in the same vein as BMW AG’s X6, hints at a production cross/utility vehicle due this fall.

Already partially revealed in a series of teaser photos released to the media, and seen frequently in spy shots, Acura says the ZDX “features striking coupe-like styling with the added benefit of a commanding presence and flexible utility to define a new luxury category.”

Honda filed for the ZDX trademark in November 2004.

When asked by Ward’s about the ZDX name a few years ago, American Honda’s John Mendel, executive vice president-auto sales as of April 1, wouldn’t tip his hat, but said lacking in Acura’s lineup was a “hard-to-define” crossover.

“When I say crossovers, I mean vehicles the customer will look at and say, ‘It’s not a truck and it’s not a car,’” Mendel said in January 2006.

Last year, Acura’s John Watts, manager-Acura product planning, told Ward’s the auto maker was studying a CUV that was geared toward the “Baby-Boomer audience that’s moving out of a large SUV and looking for something a little bit more personal.”

Acura already sells two CUVs, the large MDX and smaller RDX.

Jeff Conrad, vice president-Acura sales, says the ZDX prototype will showcase a “new level of luxury, style and refinement for Acura and speaks volumes toward our commitment to advancing the brand” when it goes on sale in production form this fall.

cschweinsberg@wardsauto.com