The luxury marque is going back to its roots with a stylish sedan concept.

Infiniti has released its first teaser image of the Q Inspiration Concept, scheduled to make its first full appearance at the Detroit auto show.

Nissan's luxury brand has focused on popular SUVs and crossovers in recent years. The Q Inspiration returns the focus to Infiniti's first nameplate, the Q sedan.

The company says the Inspiration represents its new form language for an era of advanced powertrains, previewing a design vision for th brand's sedans.

"We aim to take traditional sedan architecture to its next stage of evolution," says Infiniti design director Karim Habib. "The Q Inspiration offers an alternative form; something more flowing in appearance and muscular in stance, with an unusually long and balanced cabin."

The concept will be officially unveiled on January 15 at the North American International Auto Show.