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"The upcoming Cadillac ATS and XTS sedans have been caught undergoing hot weather testing by our sweat-stained spy photographers. This scorching environment is perfect, especially considering that Cadillac is tackling heady competition in a hotly competitive luxury car field. Slotted beneath the existing CTS sedan, the smaller rear-wheel-drive ATS has a shorter wheelbase and will likely feature a range of turbocharged 4-cylinder and normally aspirated V-6 engines. Meanwhile, the bigger XTS rides on a stretched version of the Epsilon II platform and is due to replace both the STS and DTS sedans. The XTS will offer a range of V-6 engines\u2014most likely a 3.6-liter and turbocharged 3.0-liter\u2014along with a choice of front or all-wheel-drive.   Refining the range.   Adding the smaller ATS to its lineup should allow Cadillac to position the CTS more upmarket, to compete directly with cars such as the Mercedes-Benz E-Class and BMW 5 Series. The ATS test mule seen here has short overhangs, front and rear, and what appears to be a bold egg-crate grill and vertical headlights peeking out from beneath the front camouflage. A steeply raked backlight and chunky C-pillars will give the ATS some styling flair, without being too polarizing. A rear-wheel-drive layout gives the ATS sporting credentials, though we wouldn&amp;#039;t be surprised if all-wheel drive is an option on higher-end models.        2013 Cadillac ATS    The XTS might sound like it has big shoes to fill, being the replacement for two outgoing models. Yet the dowdy DTS has for years seemed content to slip into retirement, while the competent but mostly unremarkable STS appeared forgotten amidst recent new additions to the Caddy range. Big news here is that Cadillac is jettisoning fuel-hungry V-8s in favor of a choice of two V-6 engines. We&amp;#039;re eager to learn more about the output of the turbocharged 3.0-liter V-6, and how it stacks up in terms of power and fuel efficiency. For the moment, Caddy is keeping quiet on the tech specs.   Styling should borrow heavily from the XTS Platinum Concept, seen at the 2010 Detroit Auto Show. As in the petite ATS, the dominant themes include a bold grille, thick C-pillars, and stacked head and taillights\u2014albeit scaled-up a size or two for the beefier XTS. Both models will likely make their official appearance early next year, during the Detroit Auto Show. Sales should begin shortly thereafter.        2013 Cadillac XTS   "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.roadandtrack.com/new-cars/future-cars/news/a17457/caught-testing-2013-cadillac-ats-and-2013-cadillac-xts/>