Used 2015 Cadillac ATS for Sale nearHartford, CT

How much does the 2015 Cadillac ATS cost?

Prices have softened 8.99% compared to this time last year, making it a favorable time to shop this model year.

There are 341 listings available, which gives you a modest amount of inventory to compare.

Is the 2015 Cadillac ATS a good car?

Yes — the 2015 Cadillac ATS earns a 5/5 user rating and a 5.7/10 expert rating. The model scores 9/10 across Look and feel and Performance.

The overview frames it as a compact luxury sedan with a sharper engineering focus, strong sensory appeal, and a more distinctive personality than many shoppers expect from Cadillac. The expert test-drive notes back that up with praise for its driving dynamics, balanced design, and modern, carefully considered feel, especially if you want a compact luxury car with a more ambitious identity.

The market also shows 30.2% of listings as good or great deals, which gives you some room to shop selectively.

Is the 2015 Cadillac ATS reliable?

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

The overview presents the ATS as a car that reflects Cadillac’s effort to sharpen its engineering, design, and materials, while the expert notes emphasize its strong mechanical execution and driving polish. The performance commentary also points to a satisfying automatic transmission and a chassis that feels composed when driven hard.

At the same time, the cost-effectiveness commentary suggests ownership can be less rewarding if you care about value retention and premium-car expectations. For used buyers, that means long-term risk is less about basic competence and more about whether you’re comfortable with the ATS’s higher-maintenance luxury-car ownership profile.

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

At 49.3% 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 pre-purchase inspection, especially if the car has had bodywork or multiple owners. Focus on condition, equipment level, and whether the car has the features you want, since the ATS could be optioned very differently depending on trim.

Key things to evaluate:

• Trim level: The base Standard collection is the least equipped, while the Premium collection adds the performance-tuned Magnetic Ride Control suspension. The Luxury collection is also important because it is the minimum needed for some safety equipment.
• Powertrain: You can choose between the turbocharged 2.0-liter four-cylinder and the available 3.6-liter V6. The four-cylinder is the efficiency-minded choice, while the V6 is described as the engine of choice for refinement.
• Safety package: Forward-collision warning is available, but lane-departure warning and lane-keeping assist require the Luxury collection plus the Safety and Security package. Blind-spot monitoring is offered only on Performance and Premium collections, and then only bundled with other equipment.
• Infotainment: The CUE system is described as frustrating to use, with voice recognition and text-message functions that can be difficult to operate.
• Fuel efficiency: The turbocharged 2.0-liter engine is described as returning 24 mpg in combined driving.

Which 2015 Cadillac ATS trim should I buy?

The 2015 Cadillac ATS is offered in 4 trim levels: Standard collection, Luxury collection, Performance collection, Premium collection.

Here's the short version:

• Standard collection: This is the entry point, but the content makes clear that you need to spend more to get the ATS into its best form. It is the least expensive way in, but it leaves you without the richer equipment and chassis upgrades that define the car’s appeal.
• Luxury collection: This is the trim to target if you want access to more safety equipment, since it is the minimum needed for the Safety and Security package. It makes the ATS easier to recommend if safety features matter to you.
• Performance collection: This trim adds the standard safety suite and unlocks blind-spot monitoring, making it a stronger all-around choice if you want more equipment without going all the way to the top.
• Premium collection: This is the best-value trim if you want the ATS at its most complete, because it adds the performance-tuned Magnetic Ride Control suspension and includes the standard safety features. It is the trim that best matches the car’s driving character.

Safety-package note: forward-collision warning is easy to get, but lane-departure warning, lane-keeping assist, and blind-spot monitoring are not standard on every trim.

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

This looks like a moderate, selective buyer’s market.

• Deal availability: 30.2% of listings are priced as good or great deals.
• Inventory: There are 341 listings available.
• Price trend: Prices have softened 8.99% compared with last year.
• Clean inventory: 49.3% of listings are accident-free.

If you find a listing below $10,009, 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 $10,009 sits slightly below last year's $10,998.

That decline suggests the ATS has been under some pricing pressure, which can be good news if you’re buying but less encouraging if you’re planning to sell soon. If you own one, you should expect resale value to depend heavily on condition, equipment, and how well the car has been maintained.

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 the Luxury collection plus the Safety and Security package. Blind-spot monitoring is limited to the Performance and Premium collections, and it is bundled with other equipment rather than offered cleanly on its own.

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:

• 30.2% of listings are priced as good or great deals.
• At 49.3% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 8.99% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.
• The 2015 stands out for its sharp driving dynamics and strong sensory appeal.

Consider the 2016 if:

• At $10,924, the 2016 costs more than the current year's $10,009 average.
• It adds a more potent V6 and a better infotainment system.

The bottom line: If you want the lower price and can live with the 2015’s quirks, it’s the value play. If you want a more polished version with better tech and can spend more, the 2016 is the smarter upgrade.

How does the 2015 Cadillac ATS compare to the 2015 BMW 3 Series?

Our experts score the 2015 Cadillac ATS 5.7/10 and the 2015 BMW 3 Series 7.5/10. The ATS is the more emotionally engaging car, with stronger look-and-feel and performance scores, while the BMW brings better efficiency and a stronger overall expert verdict. If you care most about driving character, the Cadillac has appeal; if you want the more balanced used luxury sedan, the BMW is the safer bet.

These recommendations are based on CarGurus' proprietary market data from November 10, 2026, CarGurus experts' opinions, and generative AI.