How much does the 2021 Cadillac XT6 cost?

Prices have softened 14.10% compared to this time last year, making it a favorable time to shop this model year.

There are 924 listings available, which gives you a solid amount of inventory to compare.

If you find a listing below $26,813.69, that's toward the low end of the year-round range and worth acting on quickly.

Is the 2021 Cadillac XT6 a good car?

It’s a strong fit if you want a three-row luxury SUV that emphasizes refinement, passenger space, and everyday usability over outright excitement. It earns a 3.67/5 user rating and a 7.5/10 expert rating.

The model scores 8/10 across Look and feel, Form and function, Technology, and Safety.

The XT6’s appeal comes through clearly in the data: it offers a spacious third row, impressive technology, and great handling, while also serving as a crossover-style alternative to the larger Escalade. The trade-offs are just as clear: advanced safety features are not standard, the stereo is lacking, and performance is fairly pedestrian.

That makes it a better match if you want a premium family SUV with a polished driving feel than if you’re chasing the most powerful or most feature-rich luxury option. 30.2% of listings are priced as good or great deals, so there are some attractive opportunities in the market.

Is the 2021 Cadillac XT6 reliable?

The XT6 is presented as a refined, confidence-inspiring three-row SUV, but the data also suggests you should buy carefully and focus on condition. Its overall package is stable for 2021, and the expert notes point to a familiar GM luxury-SUV formula rather than a major redesign.

The performance notes describe the V6 and nine-speed automatic as smooth and easygoing, which is a good sign for everyday drivability. The cost-effectiveness notes also point to a broad spread of pricing and options, so you’ll want to make sure any used example is equipped and maintained the way you expect.

If you’re shopping used, the biggest long-term ownership risk is ending up with a higher-mileage, heavily optioned example that needs more upkeep than the purchase price suggests.

What should I look for when buying a used 2021 Cadillac XT6?

At 71.4% 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 listing price looks unusually attractive. Pay close attention to bodywork, electronics, and how the driver-assistance systems behave on a test drive. Because this SUV is often optioned heavily, you’ll also want to confirm that the features you care about are actually present and working.

Key things to evaluate:

• Trim level: The Luxury trim is the most basic version, while Premium Luxury and Sport add more upscale equipment and, on the higher trims, more standard safety tech. The base trim is the one most likely to leave you wanting more standard advanced safety content.
• Powertrain: The base model uses a 2.0-liter turbo-four, while Premium Luxury and Sport use a 3.6-liter V6 with a nine-speed automatic. The V6 is described as smooth and strong enough for easy acceleration, while the four-cylinder is the efficiency-oriented choice.
• Safety package: All models include automatic emergency braking, forward-collision alert, following-distance indicator, lane-keep assist with lane-departure warning, a high-definition rearview camera, Safety Alert Seat, IntelliBeam headlights, and rear park assist. Premium Luxury and Sport also add lane change alert with blind-spot monitoring and rear cross-traffic alert as standard.
• Infotainment: The XT6 uses an 8.0-inch touchscreen, wireless Apple CarPlay and Android Auto, infotainment user profiles, an eight-speaker Bose audio system, a WiFi hotspot, six USB ports, remote start, and Teen Driver monitoring. The screen is smaller than many rivals’ and can feel crowded.
• Fuel efficiency: The base turbo-four is rated at 21 mpg city, 26 mpg highway, and 23 mpg combined with AWD, or 21 mpg city, 27 mpg highway, and 23 mpg combined with FWD. The V6 returns 19 mpg city, 26 mpg highway, and 21 mpg combined with FWD, or 18 mpg city, 25 mpg highway, and 21 mpg combined with AWD.

Which 2021 Cadillac XT6 trim should I buy?

The 2021 Cadillac XT6 is offered in 3 trim levels: Luxury, Premium Luxury, and Sport.

Here's the short version:

• Luxury: This is the value-oriented entry point, and it gives you the XT6’s core three-row layout, standard tech, and standard safety equipment without pushing the price too high. It’s the trim to consider if you want the XT6 experience at the lowest starting cost.
• Premium Luxury: This is the best-value trim for most shoppers because it adds the stronger V6, more standard safety equipment, and a more upscale overall feel. If you want the XT6’s luxury mission without jumping all the way to the top price, this is the one to target.
• Sport: This is the most expensive trim and is aimed at buyers who want the V6 with AWD and a darker, more aggressive appearance. It also pairs well with the available visibility and technology upgrades if you want the most feature-rich XT6.

Premium Luxury and Sport also get lane change alert with blind-spot monitoring and rear cross-traffic alert as standard.

Is now a good time to buy a used 2021 Cadillac XT6?

This looks like a moderate, selective buyer’s market, with enough inventory and deal activity to reward careful comparison shopping.

• Deal availability: 30.2% of listings are priced as good or great deals.
• Inventory: There are 924 listings available.
• Price trend: Prices have softened 14.10% compared with last year.
• Clean inventory: 71.4% of listings are accident-free.

If you find a listing below $26,813.69, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2021 Cadillac XT6's resale value?

The current average of $26,815 sits slightly below last year's $31,216.

That decline suggests the XT6 has become more affordable for used buyers, but it also means sellers may face more price pressure than they did a year ago. If you own one, your return will depend heavily on trim, mileage, condition, and whether the vehicle has a clean history.

For future resale, the safest path is to keep the SUV well maintained and avoid letting cosmetic or mechanical issues pile up. A clean, well-equipped XT6 should still be easier to move than a neglected one, but the broader market trend is working against sellers right now.

Is the 2021 Cadillac XT6 safe?

The 2021 XT6 earns a five-star frontal crash test rating from NHTSA and a four-star rollover crash test rating.

It earns a 8/10 safety score from our experts.

All XT6 models come with automatic emergency braking, forward-collision alert, following-distance indicator, lane-keep assist with lane-departure warning, a high-definition rearview camera, Safety Alert Seat, IntelliBeam headlights, and rear park assist. Premium Luxury and Sport add lane change alert with blind-spot monitoring and rear cross-traffic alert as standard.

The main caveat is that the lane-keep assist and lane-departure warning systems are described as weak in practice, so you should test those features carefully before you buy. Buyers who want the most advanced driver assistance will also need to step up from the base trim or add packages.

Should I buy a 2021 Cadillac XT6 or consider a different year?

If you're weighing the 2021 against nearby model years, here's how to think about it:

Choose the 2021 if:

• 30.2% of listings are priced as good or great deals.
• At 71.4% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 14.10% compared with last year.
• It keeps the XT6’s refined, confidence-inspiring three-row formula with strong tech and a spacious third row.

Consider the 2020 if:

• At $24,747, the 2020 costs less than the current year's $26,815 average.
• It offers Cadillac’s first modern three-row crossover with approachable pricing and family-friendly utility.

Consider the 2022 if:

• At $30,216, the 2022 costs more than the current year's $26,815 average.
• It adds a more polished balance of comfort, equipment, and safety.

The bottom line: If you want the best mix of price and the XT6’s core strengths, the 2021 is the sensible pick. If you’re especially price-sensitive, the 2020 can save you money, while shoppers willing to spend more may prefer the 2022’s more polished execution.

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