2020 Mercedes-Benz SL 450

Change year or car

Change year or car

$91,000

starting MSRP

2020 Mercedes-Benz SL 450
2020 Mercedes-Benz SL 450

Key specs

Base trim shown

Overview

The good:

  • Acceleration
  • Comfortable ride
  • Magic Sky Control roof
  • Trunk accessibility

The bad:

  • A bit noisy inside for a hardtop
  • Heavy
  • Understeer

1 trim

Starting msrp listed lowest to highest price

Wondering which trim is right for you?

Our 2020 Mercedes-Benz SL 450 trim comparison will help you decide.

Notable features

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

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.

Consumer reviews

Rating breakdown (out of 5):
  • Comfort 5.0
  • Interior design 4.7
  • Performance 4.7
  • Value for the money 4.5
  • Exterior styling 5.0
  • Reliability 5.0

Most recent consumer reviews

4.6

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.

4.9

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.

5.0

Have only had it a day, but it's wonderful.

This is head and shoulders the most comfortable car I've ever driven. Favorite things: * Convertable-ness * Magic sky * Seat bolsters * Massaging seats * The way it feels cornering * The throaty exhaust

See all 4 consumer reviews

Warranty

New car and Certified Pre-Owned programs by Mercedes-Benz
New car program benefits
Bumper-to-bumper
48 months/50,000 miles
Corrosion
48 months/50,000 miles
Powertrain
48 months/50,000 miles
Roadside assistance
48 months/50,000 miles
Certified Pre-Owned program benefits
Maximum age/mileage
6 years old or less/less than 75,000 miles
Basic warranty terms
1 year/unlimited miles
Powertrain
1 year/unlimited miles
Dealer certification required
164-point inspection
Roadside assistance
Yes
View all cpo program details

Have questions about warranties or CPO programs?

Compare the competitors

2022

BMW 840

$85,000

starting MSRP

2020

BMW M8

$133,000

starting MSRP

2021

BMW M850

$111,900

starting MSRP

See all 2020 Mercedes-Benz SL 450 articles