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2017 Mercedes-Benz SL 450

$60,726 — $85,118 NEW and USED
Convertible
2 Seats
23 MPG
(Combined)
Key specs of the base trim
 — 
Compare 1 trims

Overview

Is this the car for you?
(4.5) 2 reviews

The Good

  • Updated styling looks more elegant, less angry
  • Interior still coddles with top-notch materials
  • Security of a convertible hard roof
  • Magic Sky Control electronic darkening LCD roof
  • Massive torque from V-12 engine

The Bad

  • Limited cargo space
  • Safety systems still cost extra, even at this price
2017 Mercedes-Benz SL 450 exterior side view

What to Know

about the 2017 Mercedes-Benz SL 450
  • Refreshed two-seat ultra-luxury hardtop convertible
  • Rear-wheel drive only
  • Four engines, two transmission choices
  • New turbo V-6 base engine added for 2016
  • One of the last remaining V-12 engines you can buy

Our Take

from the Cars.com expert editorial team

For 60 years, the Mercedes-Benz SL has been an icon of style and luxury. With Mercedes-Benz rapidly updating all the vehicles in its lineup with a new look prefaced by the CLA-Class and S-Class, attention has turned to the SL roadster, which gets freshened for the 2017 model year.

New for 2017

Along with the cosmetic updates to the flagship roadster are a new engine and a power bump for all four models.

Exterior

Outside, the new SL gets a front-end nose job in true Beverly Hills style. A new diamond-pattern grille, LED headlights and bumper are meant to bring the SL in line with the AMG GT coupe's styling, while some tweaks to the taillights keep the rear end fresh as well. The overall look isn't all that different from the outgoing SL, but it does bring some of the AMG GT's athleticism to the luxury party.

Interior

The cabin gets a minor refresh for 2017, with a couple of new panels and an update to the multimedia system that now includes Apple CarPlay. Ambient lighting and Nappa leather are still optional, but a Harman Kardon surround-sound system is standard (you'll pay handsomely for the optional Bang & Olufsen sound system on the AMG models).

The hardtop roof now can be operated at speeds up to 25 mph, and as before, the electronically darkening Magic Sky Control LCD glass roof panel is an option. In the cargo area, a new automatic trunk separator automatically moves when the top is lowered.

Under the Hood

There are four possible powertrains, ...

For 60 years, the Mercedes-Benz SL has been an icon of style and luxury. With Mercedes-Benz rapidly updating all the vehicles in its lineup with a new look prefaced by the CLA-Class and S-Class, attention has turned to the SL roadster, which gets freshened for the 2017 model year.

New for 2017

Along with the cosmetic updates to the flagship roadster are a new engine and a power bump for all four models.

Exterior

Outside, the new SL gets a front-end nose job in true Beverly Hills style. A new diamond-pattern grille, LED headlights and bumper are meant to bring the SL in line with the AMG GT coupe's styling, while some tweaks to the taillights keep the rear end fresh as well. The overall look isn't all that different from the outgoing SL, but it does bring some of the AMG GT's athleticism to the luxury party.

Interior

The cabin gets a minor refresh for 2017, with a couple of new panels and an update to the multimedia system that now includes Apple CarPlay. Ambient lighting and Nappa leather are still optional, but a Harman Kardon surround-sound system is standard (you'll pay handsomely for the optional Bang & Olufsen sound system on the AMG models).

The hardtop roof now can be operated at speeds up to 25 mph, and as before, the electronically darkening Magic Sky Control LCD glass roof panel is an option. In the cargo area, a new automatic trunk separator automatically moves when the top is lowered.

Under the Hood

There are four possible powertrains, depending on how fast you want to go and how much you want to spend. New for 2017 is the SL450, featuring a twin-turbocharged 3.0-liter V-6 making 362 horsepower; Mercedes-Benz says it's good for a zero-to-60-mph run of 4.9 seconds. Step up to the SL550 for a twin-turbo 4.7-liter V-8 that pumps out a healthy 449 hp and hits 60 mph in 4.3 seconds. If this isn't fast or expensive enough, the AMG SL63 features a larger 5.5-liter V-8 and 577 hp, allowing you to get to 60 mph in 4.1 seconds. The top dog in the SL fleet is the AMG SL65, which sports a twin-turbo 6.0-liter V-12 engine that produces 621 hp and a mind-melting 738 pounds-feet of torque. It hits 60 mph in 4 seconds. The SL450 and SL550 both get a nine-speed automatic transmission driving the rear wheels, while the AMG models do with a beefier seven-speed multiclutch automatic.

The SL features all of the adjustable suspension bits one expects in high-end Benzes, with standard Dynamic Select allowing you to choose shock absorber behavior and transmission function that ranges from comfortable to serious sportiness. All manner of electronic control systems are available, but now you can specify Active Body Control with a curve-tilting feature that actively tilts the body up to almost 3 degrees to level the car in a turn.

Safety

With the Mercedes-Benz flagship roadster comes a high level of electronic safety systems, some standard, most optional. All SLs feature parking sensors and collision warning sensors, but you have to pony up for the Driver Assistance Package to get things like blind spot warning, lane keep assist and automatic cruise control with autonomous braking.

Consumer Reviews

What drivers are saying

4.5
2 reviews — Read All reviews
Exterior Styling
(5.0)
Performance
(4.5)
Interior Design
(4.0)
Comfort
(5.0)
Reliability
(5.0)
Value For The Money
(4.0)
(5.0)

Great Dealer!

by ebudltd from West Chester, PA on October 25, 2018

If you thought finding an honest, fair and responsive car dealer was tough to accomplish, you haven't tried Oliver Sales & Leasing in Marietta, GA. I purchased a 2017 SL450 with absolutely no problems ... Read full review

(4.0)

BASE 2 DOOR CONVERTIBLE

by SAABKYLE04 from CAROLINA, MERCEDES BENZ on April 17, 2017

THE 2017 MERCEDES BENZ SL450 CONVERTIBLE IS THE 9000RPM ON ENGINE, BY 8 SPEED AUTOMATIC TRANSMISSION FOR THE SMART KEY ACCESS SYSTEM FOR THE PRICE $88,533 Read full review

Safety

Recalls and crash tests

Recalls

The 2017 Mercedes-Benz SL 450 currently has 0 recalls


Crash and Rollover Test Ratings

The 2017 Mercedes-Benz SL 450 has not been tested.

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All Model Years for the Mercedes-Benz SL 450

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Cars.com Car Seat Check

Certified child passenger safety technicians conduct hands-on tests of a car’s Latch system and check the vehicle’s ability to accommodate different types of car seats. The SL 450 received the following grades on a scale of A-F.*
* This score may not apply to all trims, especially for vehicles with multiple body styles that affect the space and design of the seating.

Warranty FAQs

What is a Bumper-to-Bumper warranty?

Often called a basic warranty or new-vehicle warranty, a bumper-to-bumper policy covers components like air conditioning, audio systems, vehicle sensors, fuel systems and major electrical components. Most policies exclude regular maintenance like fluid top offs and oil changes, but a few brands have separate free-maintenance provisions, and those that do offer them is slowly rising. Bumper-to-bumper warranties typically expire faster than powertrain warranties.

What is a Powertrain warranty?

Don't be misled a 10-year or 100,000-mile powertrain warranty doesn't promise a decade of free repairs for your car. It typically covers just the engine and transmission, along with any other moving parts that lead to the wheels, like the driveshaft and constant velocity joints. Some automakers also bundle seat belts and airbags into their powertrain warranties. With a few exceptions, powertrain warranties don't cover regular maintenance like engine tuneups and tire rotations.

What is included in Roadside Assistance?

Some automakers include roadside assistance with their bumper-to-bumper or powertrain warranties, while others have separate policies. These programs cover anything from flat-tire changes and locksmith services to jump-starts and towing. Few reimburse incidental costs like motel rooms (if you have to wait for repairs).

What other services could be included in a warranty?

Some automakers include free scheduled maintenance for items such as oil changes, air filters and tire rotations. Some include consumables including brake pads and windshield wipers; others do not. They are typically for the first couple of years of ownership of a new car.

What does CPO mean?

A certified pre-owned or CPO car has been inspected to meet minimum quality standards and typically includes some type of warranty. While dealers and third parties certify cars, the gold standard is an automaker-certified vehicle that provides a factory-backed warranty, often extending the original coverage. Vehicles must be in excellent condition and have low miles and wear to be certified, which is why off-lease vehicles feed many CPO programs.

See also the latest CPO incentives by automaker