Infiniti's crossover sport/utility vehicle concept is a tall-riding, all-wheel-drive four-door sport sedan with the roadgoing agility of an SUV. Using the same 4.5-liter V-8 as the Q45, the FX45 drives on large 20-inch wheels and features an innovative glass roof for an open-air feel and a two-piece rear tailgate for access to its ample cargo room.
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