Used 2020 Mercedes-Benz GLC for Sale near Illinois

How much does the 2020 Mercedes-Benz GLC cost?

Prices have softened 10.64% compared to this time last year, making it a favorable time to shop this model year.

There are 1,869 listings available, which gives you a solid pool of options to compare.

Is the 2020 Mercedes-Benz GLC a good car?

Yes — the 2020 Mercedes-Benz GLC earns a 4.77/5 user rating and a 7.33/10 expert rating. The standout strength is Safety at 10/10.

Owners consistently praise its quick acceleration, comfort, and all-wheel drive capability for winter driving, and they also highlight its luxury features and value for money. The overview points to a compact crossover aimed at suburban buyers, which fits the GLC’s mix of upscale feel and everyday usability.

The trade-offs are worth noting: the GLC 300’s performance is called out as a weakness, and the back seat is described as cramped. Even so, the market still shows 34.4% of listings as good or great deals, which suggests you can shop with some leverage.

Is the 2020 Mercedes-Benz GLC reliable?

Owners rate it 4.77/5, a strong signal of long-term satisfaction.

User feedback points to a dependable, trouble-free ownership experience, with praise for comfort and value that tends to matter over the long haul. The expert evaluation also describes the model as a well-rounded, modern choice, and notes that the 2020 GLC 300 starts with standard MBUX, heated front seats, LED headlights, and 3 years of connected vehicle services.

For used buyers, the main long-term risk is less about outright durability than about choosing the right version and condition, since the base powertrain and packaging can shape how satisfied you feel over time.

What should I look for when buying a used 2020 Mercedes-Benz GLC?

Accident-free inventory is solid at 75.3% — always verify the vehicle history report.

You should still check the history report carefully, because accident-free status is only a starting point. Prioritize a pre-purchase inspection that focuses on the drivetrain, electronics, and interior condition, since those are the areas most likely to affect long-term satisfaction. It also helps to compare trim content closely so you do not overpay for features you may not use.

Key things to evaluate:

• Trim level: The GLC 300 is the mainstream choice, but the AMG versions add much more visual drama, and the GLC Coupe brings a fastback roofline. Base-model shoppers should pay close attention to feature content, since the standard setup is more restrained than the higher-performance variants.
• Powertrain: The GLC 300 uses a turbocharged inline 4-cylinder with a 9-speed automatic and either rear-wheel drive or 4Matic all-wheel drive; the AMG models step up to much stronger V6 and V8 options. Efficiency is a plus for the 4-cylinder, but the expert notes that its sound, vibration, and response fall short of better rivals.
• Safety package: The standard suite includes forward emergency braking, Exit Warning Assist, Pre-Safe Sound, and Predictive Brake Priming. The safety content also notes that the GLC earned top crash-test marks, and the 2020 update adds Exit Warning Assist as a standard feature.
• Infotainment: You get a standard 10.3-inch touchscreen, Apple CarPlay, Android Auto, USB-C ports, and optional wireless device charging. MBUX also supports augmented-reality navigation when equipped, plus a cloud-based voice assistant and highway steering/braking assistance.
• Fuel efficiency: The GLC 300 4Matic is EPA-rated at 21 mpg city, 28 highway, and 24 combined, and the expert test car averaged just under 22 mpg over 430 miles. AMG models are estimated at 16/22/18.

Which 2020 Mercedes-Benz GLC trim should I buy?

The 2020 Mercedes-Benz GLC is offered in 4 trim levels: GLC 300, GLC 300 Coupe, AMG GLC 43, AMG GLC 63.

Here's the short version:

• GLC 300: This is the best-value choice if you want the core GLC experience without paying AMG money. It brings the standard 10.3-inch touchscreen, MBUX, heated front seats, LED headlights, and the broadest mix of everyday usability and price.
• GLC 300 Coupe: Choose this if you want the same basic setup as the GLC 300 but prefer the coupe-style roofline. It starts higher in price, so it makes sense mainly if styling matters more to you than value.
• AMG GLC 43: This is the step-up pick if you want much stronger performance and a more dramatic driving character. The expert notes that the AMG version adds real excitement, making it the better fit if the standard 4-cylinder feels too mild.
• AMG GLC 63: This is the top performance choice, with the most power and the most aggressive hardware. It suits you if you want the fastest, most serious version and are willing to pay for it.

The safety package is strong across the lineup, with standard forward emergency braking and Exit Warning Assist.

Is now a good time to buy a used 2020 Mercedes-Benz GLC?

This looks like a moderate, selective buyer’s market, so you can shop carefully and still find worthwhile listings.

• Deal availability: 34.4% of listings are priced as good or great deals.
• Inventory: There are 1,869 listings available.
• Price trend: Prices have softened 10.64% compared with last year.
• Clean inventory: 75.3% of listings are accident-free.

If you find a listing below $22,909, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2020 Mercedes-Benz GLC's resale value?

The current average of $23,031 sits slightly below last year's $25,772.

That decline suggests the market has already adjusted downward, which can help you as a buyer but may pressure resale if you plan to sell soon. The current year-round range also shows that values have settled into a narrower band, so condition and equipment will matter more when it comes time to trade or list the vehicle.

If you keep the car in strong condition and choose a desirable configuration, you can help protect its future value. Vehicles with strong owner satisfaction ratings, like this model year's 4.77/5, tend to retain buyer demand, which supports resale value over time.

Is the 2020 Mercedes-Benz GLC safe?

The GLC was named a 2019 Top Safety Pick+ by the Insurance Institute for Highway Safety (IIHS), and it scored five-star ratings in all crash tests from NHTSA.

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

The standard safety package includes forward emergency braking, Exit Warning Assist, Pre-Safe Sound, and Predictive Brake Priming. Exit Warning Assist is a useful 2020 addition because it can warn occupants about approaching cyclists or cars after shutdown.

Should I buy a 2020 Mercedes-Benz GLC or consider a different year?

If you're weighing the 2020 against nearby model years, here's how to think about it:

Choose the 2020 if:

• 34.4% of listings are priced as good or great deals.
• Accident-free inventory is solid at 75.3% — always verify the vehicle history report.
• Price trend: Prices have softened 10.64% compared with last year.
• Owners rate it 4.77/5 — a strong satisfaction signal.
• It adds a standard 10.3-inch touchscreen and Exit Warning Assist.

Consider the 2021 if:

• At $26,290, the 2021 costs more than the current year's $23,031 average.
• It emphasizes more advanced infotainment and safety technology.

The bottom line: If you want the better value, the 2020 is the smarter buy because prices have eased and the feature set is still strong. If you want to spend more for a newer model-year alternative, the 2021 is the cleaner upgrade path.

These recommendations are based on CarGurus' proprietary market data from September 11, 2026, CarGurus experts' opinions, and generative AI.