We're just a week away from the official reveal of the 2013 Cadillac ATS, but the Caddy crew is continuing to work through the winter to hone its 3 Series fighter.

These latest shots of the ATS show a production-spec fascia (albeit obscured by camo), along with road-ready headlamps, tail lamps and a pair of vertical LED fog lamps set low in the front bumper. You can also catch a glimpse of the inset dual exhausts, which we're assuming will be available on both the V6 and four-pot variants.

The overall exterior effect comes off as a more modern CTS mixed with the subtle refinement of the recently revealed XTS – a good thing to our eyes. Even better is the inclusion of the 270-horsepower turbocharged 2.0-liter inline-four that's sure to give the revamped Audi A4 a run for its money in the performance and fuel efficiency department. Check the pics above to see a few more details and get ready to see the ATS uncovered and in the buff at next week's Detroit Auto Show.