Nissan Motor Co. is looking to give its luxury Infiniti cars a design makeover that will dilute its Japanese roots and flaunt a more "passionate" Latin feel.

The bold initiative aims to rev up an upscale brand that has struggled to establish itself in a competitive global market for premium autos.

Launched a quarter of a century ago in the United States with an emphasis on its Japanese esthetics, Infiniti sold about 180,000 cars globally in the year that ended in March, about a tenth of rival Audi's sales.