The majority consensus is that it means "Alpha Touring Sedan." And while we would like to offer the definitive answer, we are still waiting on Cadillac to settle the score officially. But what might be even more interesting is what the difference is between the ATS and the CTS models.

The ATS nameplate has not been particularly successful for Cadillac, but the company does not point to slow sales as the reason for its discontinuation. “Production of the ATS sedan is ending due to extensive plant upgrades, expansion, and retooling to prepare for the next generation of Cadillac sedans,” Lavina added.

Overall the Cadillac Ats reliability is 55.95 and that makes it not very reliable. The chart below illustrates exactly how this ranks compared to some other cars, but the average overall rating is 57 as some comparison.

When we compare the Cadillac ATS's and the Cadillac CTS's specifications and ratings, the Cadillac ATS has the advantage in the areas of typical lower range of pricing for one- to five-year-old used cars and base engine power. The Cadillac CTS has the advantage in the area of interior volume.

The ATS is rated to deliver an average of 25 miles per gallon, with a highway range of 496 miles. The XTS is rated to deliver an average of 22 miles per gallon, with a highway range of 532 miles. This gives the Cadillac ATS the advantage in fuel efficiency and the Cadillac XTS the advantage in maximum range.

The ATS has two engine options, including a 2.5-liter four-cylinder, and a 3.6-liter V-6. Both engines will perform well with regular gas, but if you opt for the turbocharged option, you will need to opt for premium fuel.

Worst Issues

• transmission shaking in the 2016 ATS. 4 complaints.
• exhaust fumes from other vehicles entering cabin in the 2014 ATS. 2 complaints.
• shaky in the 2014 ATS. 2 complaints.
• engine failure in the 2013 ATS. 2 complaints.
• axle seal failure in the 2015 ATS. 2 complaints.

As part of its new image as a performance oriented luxury brand, Cadillac's ATS is nimble. In fact, the car's capable handling outdoes many of its European rivals and makes it a treat to drive. Three engines are offered: a 2.5-liter four-cylinder, a 3.6-liter V6, and a 2.0-liter turbo four-cylinder.

Planning to buy a Cadillac or just brushing up your knowledge, the lifespan of your car is a sure concern among buyers. A Cadillac, in general, can last over 200,000 miles and up to 20 years, depending on its usage and maintenance. A well-kept car, for sure, can give you a longer ride.

The Cadillac ATS-V has the best resale value among Cadillac models, which retains 57.1% of its value after the first 5 years. Following the ATS-V is the Cadillac ATS with 52.3% resale value. The Cadillac XT4 ranks #3 with a resale value of 52.1%.

2018 The ATS (discontinued in 2018) was all sport, and nothing less. Truly built for dynamic drivers, the ATS offered incredible speed, style and handling. With a choice of a powerful 2.0L turbo 4-cylinder engine with 272 hp or 3.6L V6 engine with 335 hp, the ATS brought pure exhilaration to every drive.

As a midsize sedan, the CTS is bigger than the compact ATS, offered in sedan or coupe styles. All models start with Cadillac's premium leatherette upholstery.

Cadillac CT4 The Cadillac CT4 is a sedan manufactured and marketed by Cadillac. It replaced the Cadillac ATS sedan and sits below the CT5 in Cadillac's lineup. The CT4-V was unveiled first on May 30, 2019, followed by the standard CT4 four months later.

The Primary Difference To get started categorizing them in your mind, know that the CTS is the bigger of the two vehicles. If you are going to be taking passengers with you frequently, or if you simply like to have a little bit more interior space around you while driving, the CTS should be your first pick.

Cadillac produces several models that take premium. In fact, they recommend that these models use 93 octane premium gas. That said, these models will run fine on 91, and if necessary, you can use 87 octane, but Upper St Clair drivers should avoid aggressive driving, so they don't cause engine knocking.

Over time, using regular fuel against your car's requirements can damage your vehicle. Prolonged use can cause knocking of the engine, which can in turn void the warranty of your car; especially if the car's manual specifically warns against using regular grade fuel.