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2020
Mercedes-Benz SL 450

Starts at:
$91,000
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New 2020 Mercedes-Benz SL 450
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2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450 2020 Mercedes-Benz SL 450

Notable features

New Grand Edition available
Retractable-hardtop convertible
Two seats
V-6 or V-8 power

The good & the bad

The good

Acceleration
Comfortable ride
Magic Sky Control roof
Trunk accessibility

The bad

A bit noisy inside for a hardtop
Heavy
Understeer

Expert 2020 Mercedes-Benz SL 450 review

our expert's take
Our expert's take
By Cars.com Editors
Full article
our expert's take

What Is the 2020 Mercedes-Benz SL-Class?

The two-seat Mercedes-Benz SL-Class, a retractable-hardtop convertible, is constructed mostly of aluminum and is offered with a choice of V-6 or V-8 power. The SL450 gets a 362-horsepower, twin-turbocharged 3.0-liter V-6 engine, while the SL550 uses a 449-hp, twin-turbo 4.7-liter V-8. Both models have rear-wheel drive and a nine-speed automatic transmission. The SL competes with the BMW 8 Series and Lexus LC 500.

What’s New on the 2020 Mercedes-Benz SL-Class?

Keyless access and push-button start are now standard, and a new limited-edition Grand Edition is available. The Grand Edition features Graphite Grey paint, AMG 10-spoke wheels, revised front bumper styling, brown and black Nappa leather upholstery with gray contrast stitching and piping, embroidered floormats, Grand Edition badges and the Premium and Driver Assistance packages. Mercedes will produce 100 SL450 Grand Editions and 100 SL550 Grand Editions.

What Features in the 2020 Mercedes-Benz SL-Class Are Most Important?

The SL comes with features not found on many other cars. The power-retractable roof can be raised or lowered while the car is moving at up to 25 mph. When the top is up, an available panoramic glass section can automatically change from dark to transparent. An available active suspension adjusts to reduce body roll in corners and lowers automatically at high speeds.

Should I Buy the 2020 Mercedes-Benz SL-Class?

The SL roadster has been coddling Mercedes customers for more than 60 years, and though it doesn’t rank in the same performance league as the Porsche 911, the SL550 is hardly a boulevard cruiser. All in all, the SL offers elegant surroundings and enough verve to keep most drivers entertained.

2020 Mercedes-Benz SL 450 review: Our expert's take

What Is the 2020 Mercedes-Benz SL-Class?

The two-seat Mercedes-Benz SL-Class, a retractable-hardtop convertible, is constructed mostly of aluminum and is offered with a choice of V-6 or V-8 power. The SL450 gets a 362-horsepower, twin-turbocharged 3.0-liter V-6 engine, while the SL550 uses a 449-hp, twin-turbo 4.7-liter V-8. Both models have rear-wheel drive and a nine-speed automatic transmission. The SL competes with the BMW 8 Series and Lexus LC 500.

What’s New on the 2020 Mercedes-Benz SL-Class?

Keyless access and push-button start are now standard, and a new limited-edition Grand Edition is available. The Grand Edition features Graphite Grey paint, AMG 10-spoke wheels, revised front bumper styling, brown and black Nappa leather upholstery with gray contrast stitching and piping, embroidered floormats, Grand Edition badges and the Premium and Driver Assistance packages. Mercedes will produce 100 SL450 Grand Editions and 100 SL550 Grand Editions.

What Features in the 2020 Mercedes-Benz SL-Class Are Most Important?

The SL comes with features not found on many other cars. The power-retractable roof can be raised or lowered while the car is moving at up to 25 mph. When the top is up, an available panoramic glass section can automatically change from dark to transparent. An available active suspension adjusts to reduce body roll in corners and lowers automatically at high speeds.

Should I Buy the 2020 Mercedes-Benz SL-Class?

The SL roadster has been coddling Mercedes customers for more than 60 years, and though it doesn’t rank in the same performance league as the Porsche 911, the SL550 is hardly a boulevard cruiser. All in all, the SL offers elegant surroundings and enough verve to keep most drivers entertained.

Factory warranties

New car program benefits

Basic
4 years / 50,000 miles
Corrosion
4 years / 50,000 miles
Powertrain
4 years / 50,000 miles
Roadside Assistance
4 years / 50,000 miles

Certified Pre-Owned program benefits

Age / mileage
6 years old or less / less than 75,000 miles
Basic
1 year / unlimited miles
Dealer certification
164-point inspection

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Consumer reviews

5.0 / 5
Based on 4 reviews
Write a review
Comfort 5.0
Interior 4.8
Performance 4.8
Value 4.5
Exterior 5.0
Reliability 5.0

Most recent

Very Happy with SL450

Recently traded a 2019 Corvette Z06 for this 2020 SL450. The Mercedes is much quieter and rides better. Quality and fun factor is high. Mercedes infotainment system and menus needs to be more user friendly.
  • Purchased a Used car
  • Used for Having fun
  • Does recommend this car
Comfort 5.0
Interior 4.0
Performance 4.0
Value 4.0
Exterior 5.0
Reliability 5.0
10 people out of 11 found this review helpful. Did you?
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Best Car I've ever owned

Great car - I love the SL its my second one great styling, comfort and power. Pust a smile on my face every time I see it.
  • Purchased a New car
  • Used for Having fun
  • Does recommend this car
Comfort 5.0
Interior 5.0
Performance 5.0
Value 4.0
Exterior 5.0
Reliability 5.0
7 people out of 7 found this review helpful. Did you?
Yes No

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FAQ

What trim levels are available for the 2020 Mercedes-Benz SL 450?

The 2020 Mercedes-Benz SL 450 is available in 1 trim level:

  • SL 450 (1 style)

What is the MPG of the 2020 Mercedes-Benz SL 450?

The 2020 Mercedes-Benz SL 450 offers up to 20 MPG in city driving and 28 MPG on the highway. These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on vehicle options, trim level, driving conditions, driving habits, vehicle maintenance, and other factors.

What are some similar vehicles and competitors of the 2020 Mercedes-Benz SL 450?

The 2020 Mercedes-Benz SL 450 compares to and/or competes against the following vehicles:

Is the 2020 Mercedes-Benz SL 450 reliable?

The 2020 Mercedes-Benz SL 450 has an average reliability rating of 5.0 out of 5 according to cars.com consumers. Find real-world reliability insights within consumer reviews from 2020 Mercedes-Benz SL 450 owners.

Is the 2020 Mercedes-Benz SL 450 a good Convertible?

Below are the cars.com consumers ratings for the 2020 Mercedes-Benz SL 450. 100.0% of drivers recommend this vehicle.

5.0 / 5
Based on 4 reviews
  • Comfort: 5.0
  • Interior: 4.8
  • Performance: 4.8
  • Value: 4.5
  • Exterior: 5.0
  • Reliability: 5.0

Mercedes-Benz SL 450 history

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