Used 2015 Cadillac ATS for Sale near Illinois

How much does the 2015 Cadillac ATS cost?

Prices have softened 3.94% compared to this time last year, making it a favorable time to shop this model year.

There are 324 listings available, which gives you a modest amount of inventory to compare.

Is the 2015 Cadillac ATS a good car?

Yes — it earns a 5/5 user rating and a 5.67/10 expert rating. The model scores 9/10 across Look and feel and Performance.

The 2015 Cadillac ATS is aimed at you if you want a compact luxury sedan that feels more polished and engaging than badge appeal alone. The overview frames it as Cadillac’s effort to sharpen engineering, design, and materials, and the expert notes back that up with strong driving dynamics and a cohesive, upscale appearance.

At the same time, the car’s strengths are paired with some frustrating controls and a cabin that can feel less intuitive than you’d expect in this class. 26.9% of listings are priced as good or great deals, which suggests there are worthwhile opportunities if you shop carefully.

Is the 2015 Cadillac ATS reliable?

Owners rate it 5/5, a strong signal of long-term satisfaction.

The overview and expert notes point to a car that feels thoughtfully engineered and rewarding to drive, which supports confidence in the way it’s put together. The performance notes also describe a satisfying transmission and a chassis that feels composed when driven hard.

The expert commentary also suggests the ATS can be a demanding ownership proposition if you want the best version of it, since the most appealing setup requires stepping up in equipment and spending more. For used buyers, that means long-term ownership risk is less about basic competence and more about whether the specific car you choose has the features and condition you expect.

What should I look for when buying a used 2015 Cadillac ATS?

At 53.1% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should start with a vehicle-history report and then prioritize a close inspection of bodywork, panel alignment, and signs of prior repair. Because the ATS was offered with different equipment levels, it also pays to confirm the exact feature set on the car you’re considering so you know what you’re getting.

Key things to evaluate:

• Trim level: The base setup leaves out some desirable equipment, and the higher collections add important features such as Magnetic Ride Control, more upscale materials, and a more complete luxury feel.
• Powertrain: You can choose between the turbocharged 4-cylinder and the available 3.6-liter V6, with the V6 described as the preferred engine for refinement.
• Safety package: Forward-collision warning is available, while lane-departure warning and lane-keeping assist require a higher collection plus the Safety and Security package; blind-spot monitoring is limited to higher collections and bundled options.
• Infotainment: The CUE system is touch-based and voice control can be frustrating, so you should test the interface carefully before buying.
• Fuel efficiency: The turbocharged 4-cylinder is described as returning 24 mpg in combined driving.

Which 2015 Cadillac ATS trim should I buy?

The 2015 Cadillac ATS is offered in 3 trim levels: Standard collection, Luxury collection, Performance collection.

Here's the short version:

• Standard collection: This is the entry point, but it leaves you with the most compromises in equipment and safety content, so it makes sense mainly if price is your top priority.
• Luxury collection: This is the best-value starting point because it unlocks more of the ATS’s desirable safety equipment and gives you a better foundation for the car’s upscale character.
• Performance collection: This is the trim to target if you want the most complete ATS experience, since it includes the key safety features and can be paired with the stronger engine and richer equipment.

Safety-package note: forward-collision warning is easy to get, but lane-departure warning, lane-keeping assist, and blind-spot monitoring are tied to higher collections and/or bundled options.

Is now a good time to buy a used 2015 Cadillac ATS?

This is a moderate market for selective buyers, so you can shop with some leverage if you focus on the right listing.

• Deal availability: 26.9% of listings are priced as good or great deals.
• Inventory: There are 324 listings available.
• Price trend: Prices have softened 3.94% compared with last year.
• Clean inventory: 53.1% of listings are accident-free.

If you find a listing below $10,674, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2015 Cadillac ATS's resale value?

The current average of $10,674 sits slightly below last year's $11,112.

That decline suggests the ATS has softened in the market, which can work against you if you buy at the wrong price. If you plan to sell later, you’ll want to be especially careful about condition, mileage, and equipment because those factors matter more when a model is already trending downward.

The good news is that a well-kept ATS with the right trim and features should still appeal to shoppers who want a compact luxury sedan with strong driving character. Vehicles with strong owner satisfaction ratings, like this model year's 5/5, tend to retain buyer demand, which supports resale value over time.

Is the 2015 Cadillac ATS safe?

The 2015 Cadillac ATS earns five-star ratings in every assessment the NHTSA conducts on new cars, including rollover resistance.

It earns a 5/10 safety score from our experts.

Cadillac makes forward-collision warning easy to get, but lane-departure warning and lane-keeping assist require a higher collection plus the Safety and Security package. Blind-spot monitoring is also limited to higher collections and bundled options, so you should verify exactly which driver-assistance features are on the car you’re considering.

Should I buy a 2015 Cadillac ATS or consider a different year?

If you're weighing the 2015 against nearby model years, here's how to think about it:

Choose the 2015 if:

• 26.9% of listings are priced as good or great deals.
• At 53.1% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 3.94% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.
• The 2015 stands out for its sharp engineering focus and engaging driving character.

Consider the 2016 if:

• At $11,662, the 2016 costs more than the current year's $10,674 average.
• It adds Apple CarPlay for better smartphone integration.

The bottom line: If you want the lower entry price and are comfortable shopping carefully, the 2015 is the value play. If you’d rather pay more for a newer setup with better smartphone integration, the 2016 is the cleaner upgrade path.

These recommendations are based on CarGurus' proprietary market data from September 22, 2026, CarGurus experts' opinions, and generative AI.