Used Mercedes-Benz SL-Class for Sale nearBlue Mounds, WI

How much does the Mercedes-Benz SL-Class cost in today's market?

Used Mercedes-Benz SL-Class prices span a wide range depending on model year. Here's what the market looks like right now:

The Mercedes-Benz SL-Class's current nationwide average price is $41,486, and its lowest point over the past year was $36,889. Recently, prices have come down for the 2017 and 2022 models, making now a good time to shop recent model years.

Is the Mercedes-Benz SL-Class a good car?

Yes — the Mercedes-Benz SL-Class earns strong marks from owners for its performance, luxury, and style.

The all-generations owner rating is 4.68/5 across every model year in the data.

Owners consistently praise the SL-Class for its powerful engines, smooth handling, and luxurious comfort. The retractable hardtop and stylish design also come up again and again as standout strengths.

Expert reviews rate the 2026 and 2023 models among the highest across all years.

The main trade-offs are high ownership costs, limited cargo space, and some complex controls and systems that can be frustrating to live with.

22.1% of listings are priced as good or great deals.

Are Mercedes-Benz SL-Class models reliable?

Owners consistently describe the SL-Class as a rewarding luxury sports car with strong performance, refined comfort, and standout styling. Expert reviews also point to a polished cabin, advanced technology, and a high-end driving experience that fits the model’s flagship role.

• Owners rate the Mercedes-Benz SL-Class between 4.0 and 5.0 out of 5 stars across all model years in the data.

For used buyers, long-term ownership risk is tied to the SL-Class’s complexity, so a careful inspection and a complete service history matter a lot.

What should I look for when buying a used Mercedes-Benz SL-Class?

Across all model years, accident-free inventory is solid at 78.3% — always verify the vehicle history report.

Older model years carry meaningfully higher accident rates, so always verify the vehicle history report on pre-2019 models.

Key things to evaluate:

• Safety package: standard driver-assistance features include automatic emergency braking, forward-collision warning, blind spot monitors, safe-exit assist, lane-keep assist, parking assist, Pre-Safe, and a surround-view camera.
• Infotainment: the third-generation Mercedes-Benz User Experience (MBUX) infotainment system incorporates wireless Apple CarPlay and Android Auto, as well as natural-language voice recognition.
• Fuel efficiency: The turbo-four SL 43 is EPA-rated at 22 mpg combined (19 mpg city, 27 mpg highway). The V8 models live down to expectations at 16 mpg combined, with city and highway ratings of 14 mpg and 21 mpg respectively for the SL 55 and SL 63. The Maybach model loses 1 mpg in the city and highway categories, but we nonetheless managed to better its EPA combined rating with a 17.5-mpg indicated average. Official ratings for the SL 63 S E Performance plug-in hybrid weren’t available at the time of writing, but Mercedes estimates 29 mpg combined (33 mpg city, 25 mpg highway).

Which Mercedes-Benz SL-Class trim should I buy?

The 2026 Mercedes-Benz SL-Class offers these trims:

• SL 43: The entry point with a 2.0-liter turbocharged inline-four, 416 horsepower, rear-wheel drive, and a 0–60 mph time of 4.6 seconds.
• SL 55: A strong step up with a twin-turbocharged 4.0-liter V8, all-wheel drive, 469 horsepower, and 516 pound-feet of torque.
• SL 63: The performance-focused V8 trim with 577 horsepower and 590 pound-feet of torque.
• SL 63 S E Performance: The top-performance plug-in hybrid with 805 horsepower, 1,047 pound-feet of torque, carbon-ceramic brakes, rear-axle steering, and an active anti-roll system.
• Maybach SL 680 Monogram Series: The ultra-luxury choice with the 577-horsepower engine, all-wheel drive, Maybach-specific damper valves, softer springs, and a ride tuned for comfort; it stands out as the best-value pick if you want the most upscale version.

What Mercedes-Benz SL-Class do most buyers choose?

The Mercedes-Benz SL-Class years with the most listings are 2023, 2022, and 2014.

Higher-volume years tend to be the easiest places to shop because you get more inventory to compare and more chances to find the right color, mileage, and price combination. They also tend to attract more buyers because they sit near the center of the model’s used-market activity.

What is the Mercedes-Benz SL-Class's resale value?

Most of the years in this set are moving lower, which can work in your favor if you’re shopping used. A couple of years are still edging upward, so the market is not moving in one direction across the board. The smallest changes are clustered near the middle of the range, while the sharper drops create better opportunities for value-focused buyers.

The 2023, 2015, and 2022 model years have held their value best, with the smallest year-over-year price changes.

Is the Mercedes-Benz SL-Class safe?

• 2026: 7/10
• 2023: 10/10

Standard driver-assistance features include automatic emergency braking, forward-collision warning, blind spot monitors, safe-exit assist, lane-keep assist, parking assist, and Pre-Safe, along with a standard surround-view camera.

For the safest used buy, the 2023 model posts the highest confirmed score of 10/10.

Should I buy a used Mercedes-Benz SL-Class now or wait for the next model?

Buy now if:

• Price trend: The 2022 model is at −4.02% versus a year ago, and the 2017 model is at −8.95%.
• Deal availability: The 2022 model has 32% good and great deals.
• Sweet-spot year: The 2023 model has the most listings at a current average price of $97,750. The Mercedes-Benz SL-Class offers a stylish grand-touring character with premium interior materials and a strong performance focus.

Consider waiting if:

• Powertrain/efficiency: Mercedes offers no shortage of powertrains with the SL, all with a nine-speed dual-clutch automatic transmission, and the lineup ranges from 416 horsepower and 369 pound-feet of torque in the SL 43 to 805 hp and 1,047 lb-ft of torque in the SL 63 S E Performance.
• Tech: The SL’s third-generation Mercedes-Benz User Experience (MBUX) infotainment system incorporates wireless Apple CarPlay and Android Auto, as well as natural-language voice recognition.
• Safety: Standard driver-assistance features include automatic emergency braking, forward-collision warning, blind spot monitors, safe-exit assist, lane-keep assist, parking assist, and Pre-Safe, which cinches seatbelts, closes windows, and generally preps for a collision if an imminent one is detected.
• Starting price: Pricing starts at $113,850 for the SL 43.

If you're buying used today, the 2023 model year offers the best mix of value and availability. If you want the latest tech and features, it may be worth waiting for the next model year's inventory to build up.

These recommendations are based on CarGurus' proprietary market data from September 22, 2026, CarGurus experts' opinions, and generative AI.