Used Mercedes-Benz SL-Class for Sale nearJanesville, 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 $41,399, and over the past year that nationwide average reached a low of $36,677. 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 is a strong choice if you want a luxury roadster with standout style, serious performance, and a premium cabin. The all-generations owner rating is 4.68/5 across every model year in the data.

Owners consistently praise the SL-Class for its exceptional performance, luxurious comfort, and stylish design. The retractable hardtop and smooth handling also come through as recurring strengths that make the car feel special to drive.

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

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

21.4% of listings are priced as good or great deals.

Are Mercedes-Benz SL-Class models reliable?

Owners and experts consistently praise the SL-Class for its strong performance, luxurious comfort, and high-end craftsmanship. Across the model years in the data, it also earns especially positive feedback for its stylish design and refined driving experience.

• 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 and the potential for expensive repairs, so a careful inspection and service-history review 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 78.2% — 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. 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 claimed 0–60 mph time of 4.6 seconds.
• SL 55: Adds V8 power, all-wheel drive, 469 horsepower, and 516 pound-feet of torque for a 3.8-second 0–60 mph run.
• SL 63: Builds on the SL 55 with the same twin-turbo V8 tuned to 577 horsepower and 590 pound-feet of torque.
• SL 63 S E Performance: The performance flagship, pairing the twin-turbo V8 with a plug-in hybrid system for 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 luxury standout, with the 577-horsepower engine, all-wheel drive, Maybach-specific damper valves, softer springs, rear-axle steering, and a focus on ride comfort and ultra-luxury presentation.

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 usually give you more choices, which can make it easier to compare prices, equipment, and condition. They also tend to be the years shoppers cross-shop most often, so you may find a broader spread of listings and deal opportunities.

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

Most of the model years in this table are moving lower year over year, which can work in your favor if you're shopping used. One year is essentially flat, while another is still edging upward, so the pricing picture is mixed rather than uniform.

The 2015 model year is holding steady, with prices close to flat year-over-year.

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.

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 −3.02% versus a year ago, and the 2017 model is at −8.5%.
• Deal availability: The 2022 model has 28.4% good and great deals.
• Sweet-spot year: The 2023 model has the most listings at a current average price of $98,645. The Mercedes-Benz SL-Class offers a stylish grand-touring character with a premium cabin and a strong sense of occasion.

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 to 805 hp and 1,047 lb-ft of torque.
• 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 15, 2026, CarGurus experts' opinions, and generative AI.