Used Cadillac CT6 for Sale nearPortsmouth, NH

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 $22,253, and its year-round low is $21,958.21. That gives you a clear snapshot of where this model sits today across the years in the data. 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 owner approval across its model years, anchored by an all-generations user rating of 4.64/5. Owners consistently praise its luxurious feel, smooth ride, powerful performance, advanced technology, and spacious interiors.

The all-generations owner rating is 4.64/5 across every model year in the data.

29.7% of listings are priced as good or great deals.

Are Cadillac CT6 models reliable?

Owners consistently praise the Cadillac CT6 for its smooth ride, strong performance, and upscale cabin experience, and expert feedback aligns with that overall appeal. Across the model years in the data, the CT6 also draws positive comments for its technology and spaciousness.

• 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 is worth weighing alongside the CT6's strengths, especially if you plan to keep the car for many years.

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

Across all model years, at 62.5% 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.

Those higher-volume years tend to draw more shoppers because they give you more inventory to compare and more chances to find the right price and trim. They also make it easier to shop across multiple listings without narrowing your search too quickly.

What is the Cadillac CT6's resale value?

Prices are moving lower across the model years shown, which can work in your favor if you're shopping used. The sharpest drop appears in the older part of the lineup, while the other years also show meaningful declines. That pattern gives you more room to find value if you're comparing several model years at once. 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 −6.7% versus a year ago, and the 2018 model is at −6.8%.
• Deal availability: The 2019 model has 29.9% good and great deals, and the 2018 model has 28.4%.
• Sweet-spot year: The 2017 model has the most listings at a current average price of $19,427.

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 September 4, 2026, CarGurus experts' opinions, and generative AI.