The teaser video doesn't give away much, highlighting only the sport sedan's new headlight. From what we can see, however, it appears as though the Q50 will sport a more aggressive look than the current G sedan. The teaser video also reveals a new light band that forms the headlight's "eyebrow", which could become a new Infiniti design cue.
Not much else is known about the Q50, but the sports sedan is expected to switch from Infiniti's FM platform to a new rear-wheel drive architecture sourced from corporate partner Mercedes-Benz. A new turbocharged four-cylinder will stand as the entry point to the Q50 range, but it remains unknown if the G's current 3.7L V6 will remain on offer. Infiniti has confirmed plans for a new 550 horsepower 3.0L V6 earmarked for a flagship sedan, so it's possible that mill could end up beneath the hood of a high-performance Q50 IPL model.
Be sure to check back for more details and live images from the Detroit auto show next month.