How much does the Cadillac CT6 cost in today's market?

Used Cadillac CT6 prices span a wide range depending on model year. Here's what the market looks like right now:

The Cadillac CT6's current nationwide average price is $22,171, and its year-round low is $21,979.48. That gives you a useful snapshot of where this model sits right now across the full lineup. Recently, prices have come down for the 2017, 2018, and 2019 models, making now a good time to shop recent model years.

Is the Cadillac CT6 a good car?

Yes — the Cadillac CT6 earns strong marks from owners across its lineup, with an all-generations owner rating that points to broad satisfaction. The all-generations owner rating is 4.64/5 across every model year in the data.

Owners consistently praise the CT6 for its luxurious feel, smooth ride, powerful performance, advanced technology, and spacious interior. Many reviews also highlight the quiet cabin and stylish design as standout traits.

25.4% of listings are priced as good or great deals.

Are Cadillac CT6 models reliable?

Owners consistently praise the CT6 for its luxury, smooth ride, powerful performance, and advanced technology. Expert and owner feedback also points to a spacious cabin and a refined driving experience that many shoppers value in a used luxury sedan.

• Owners rate the Cadillac CT6 between 4.0 and 4.8 out of 5 stars across all model years in the data.

For used buyers, long-term ownership risk centers on keeping up with maintenance and checking the vehicle history carefully before you buy.

What should I look for when buying a used Cadillac CT6?

Across all model years, at 62.3% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

What Cadillac CT6 do most buyers choose?

The Cadillac CT6 years with the most listings are 2017, 2018, and 2019.

These higher-volume years tend to draw more shoppers because they offer more inventory to compare, which can make it easier to find the right trim, price, and condition. They also give you a broader set of listings to evaluate when you're balancing value and availability.

What is the Cadillac CT6's resale value?

Prices are moving lower across every model year shown, which can work in your favor if you're shopping used. The sharpest drops are in the older recent-model years, while the smallest change appears in the oldest year listed. That pattern gives you more room to find value, especially if you're comparing similar trims across multiple years.

The 2016, 2019, and 2018 model years have held their value best, with the smallest year-over-year price changes.

Should I buy a used Cadillac CT6 now or wait for the next model?

Buy now if:

• Price trend: The 2019 model is at −5.56% versus a year ago, and the 2018 model is at −8.1%.
• Deal availability: The 2019 model has 23.2% good and great deals, and the 2018 model has 23.5%.
• Sweet-spot year: The 2017 model has the most listings at a current average price of $19,357.

If you're buying used today, the 2017 model year offers the best mix of value and availability. If you want the newest version, it may be worth waiting for 2021 inventory to mature.

These recommendations are based on CarGurus' proprietary market data from August 28, 2026, CarGurus experts' opinions, and generative AI.