2017 Mercedes-Benz SL-Class

#9
in Midsize convertibles
2017 MODEL

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Detailed Review

Luxurious seats, rich insides, and vigorous upheldment of standards are benchmarks of SL 550 Roadster. Truth be told, the whole SL lineup of roadsters is intended to give a satisfying cruising experience without trading off the efficiency. The most recent 2017 mid cycle refresh of Mercedes-Benz SL 550 Roadster offers upgraded everything in addition to a superior driving experience.


10/10
Features

 

8.5/10
Engine

 

7.0/10
Fuel Economy

 

8.5/10
Interior

 

7.8/10
Exterior

 
 
 
 

The SL 550 Roadster packs a 4.7L Bi-Turbo V8 engine and is able to deliver a powerful performance backed by 449 hp. Moreover, the engine imparts 516 lb.-ft. of torque to the ride. The luxury sports coupe offers a 9-speed automatic transmission mode, not available in any other rival. Although the coupe delivers powerful performance, some class competitors outshine it.

2017 Mercedes-Benz SL-Class Features

10/10

19-inch wheels, an automated parking system, and dual-zone automatic climate control are some major highlights of the SL550 Roadster. Cruising is made interactive and enjoyable with a reliable and powerful navigation system. Moreover, the ride comes equipped with Mercedes’ Mbrace emergency communications for helping you out during undesirable scenarios. The luxury sports car also allows integration with Android Auto and Apple CarPlay.

Trim

SL 550 Roadster

MSRP

$112,300

Key Features

Automated parking system

 

11-speaker Harman Kardon sound system

 

Apple CarPlay and Android Auto

 

Airscarf neck-level heater

 

ventilated seats with active side bolsters and massage functions

 

Dual-zone automatic climate control

 

Navigation system

 

Power-adjustable steering wheel

 

sun-reflecting leather upholstery

 

power trunklid with hands-free activation

 

power-adjustable heated seats

Mercedes-Benz SL 550 Roadster features an 11-speaker Harman Kardon sound system and HD radio. In addition to being comfy and luxurious the leather upholstery added to the coupe interiors also reflects sunlight. Also, the coupe features ventilated seats with active side bolsters and massage functions.

We Recommend

No further trims are available for the 2017 Mercedes-Benz SL 550 Roadster.

2017 Mercedes-Benz SL-Class Engine

8.5/10

“Long overhangs were tacked on to the front and back, and the headlights were given weird inflamed tear ducts, as if the car had a horrendous case of pinkeye. That’s been fixed, sort of, with new headlamps and bumper plastic that relaxes the face a little, augmented by a couple of hood blisters evoking the ’55 300SL Gullwing.” - Car and Driver

Powered by a 449hp 4.7L Bi-Turbo V8 engine, the SL 550 Roadster delivers excellent performance. However, its engine power is lowest among the fraternity. The ride is in close league with Porsche 911 GTS Cabriolet in terms of power. The latter’s 3.0L Twin-turbocharged boxer 6 engine delivers a power of 450 hp. Jaguar F-Type R Convertible offers 550 hp of power, while BMW M6 Cabriolet comes with slightly higher 560 hp.

Models

Mercedes SL 550 Roadster

Porsche 911 GTS Cabriolet

jaguar F-Type R Convertible

BMW M6 Cabriolet

MSRP

$112,300

$133,300

$103,850

$122,300

Engine

4.7L Bi-Turbo V8

3.0L Twin-turbocharged boxer 6

5.0L V8 Supercharged

4.4L DOHC V8 32V TwinPower Turbo

Transmission

9-speed Automatic

7-speed Automatic

8-speed Automatic

7-Speed Automatic

Horsepower

449hp @ 5,250-5,500 rpm

450hp @ 6500 rpm

550hp @ 6500 rpm

560hp @ 6000 rpm

Torque

516 lb.-ft. @ 1800 rpm

405 lb.-ft. @ 2150-5000 rpm

502 ft-lbs. @ 3500 rpm

500 ft-lbs. @ 1500 rpm

2017 Mercedes-Benz SL 550 Roadster, however, offers the most torque, 516 lb.-ft. in its class. Jaguar F-Type R Convertible and BMW M6 Cabriolet are in close competition with 502 and 500 ft.-lb. of torque, respectively. Porsche 911 GTS Cabriolet has the least torque of 405 lb.-ft. in the segment. M6 Cabriolet and 911 GTS Cabriolet supports a 7-speed automatic transmission mode. On the other hand, F-Type R comes with an 8-speed auto transmission mode.

Acceleration

2017 Mercedes-Benz SL 550 Roadster flaunts to have an impressive 0-60 MPH acceleration time of 4.3 seconds. Nonetheless, this is the slowest among the fraternity. BMW M6 Cabriolet beats SL 550 Roadster in the same task by 0.3 seconds. Jaguar F-Type R Convertible takes 3.9 seconds to hit 60 MPH from nothing. The best 0-60 MPH acceleration time is boasted by the Porsche 911 GTS Cabriolet. It takes merely 3.6 seconds to shoot to 60 MPH.

Models

Mercedes SL 550 Roadster

Porsche 911 GTS Cabriolet

jaguar F-Type R Convertible

BMW M6 Cabriolet

0-60 MPH

4.3 sec

3.6 sec

3.9 sec

4.0 sec

Quarter mile

11.5 sec

12.2sec

11.7 sec

11.9 sec

Engine

4.7L

3.0L

5.0L

4.4L

Emission

(Tons/yr of CO2 Emissions @ 15K mi/year)

8.8

8.4

9.8

11.0

911 GTS Cabriolet traverses a quarter-mile in 12.2 seconds, slowest in the competition. The ride is bested by BMW M6 Cabriolet, which takes 11.9 seconds to do the same. However, this is even slower than that of 11.7 seconds taken by the Jaguar F-Type R Convertible. Amazingly, the best quarter-mile time is offered by none other than the SL 550 Roadster. The luxury sports coupe takes merely 11.5 seconds to do so.

Ride and Handling

To be straightforward, 2017 Mercedes-Benz SL 550 Roadster isn’t there to compete with sports-first, luxury-second coupes. The list includes the likes of Porsche 911 GTS Cabriolet. On the contrary, it is designed to ensure the passengers enjoy a comfy, solid and highly-safe ride. As such, handling and steering are something awesome with the luxury sports coupe.

The steering power is complemented by a strong braking system and made complete with a well-build handling mechanism. The desirable result is in front of us in the form of the 2017 Mercedes-Benz SL 550 Roadster. In short, you need not hold yourself from letting it loose on wide, curvy drives.

Braking

SL 550 Roadster’s front brake and rear brake measure 14.2-inch and 12.6-inch, respectively. The brakes are powerful and easy to take charge of. The rear brake of SL 550 Roadster is smallest among the league. Jaguar F-Type R Convertible and BMW M6 Cabriolet feature the most balanced braking systems.

Model

Mercedes SL 550 Roadster

Porsche 911 GTS Cabriolet

jaguar F-Type R Convertible

BMW M6 Cabriolet

Brake Front (in.)

14.2

13.8

15

15.7

Brake Rear (in.)

12.6

13

14.8

15.6

Curb Weight (lbs.)

3959

3,396

3847

4515

60-0 MPH (ft.)

113

112

113

115

BMW M6 Cabriolet takes a distance of 115 feet for coming to a halt from 60MPH. 2017 Mercedes-Benz SL 550 Roadster accomplishes the same feat in 113 feet. This is similar to that offered by the Jaguar F-Type R Convertible coupe. The best among the league is offered by the Porsche 911 GTS Cabriolet. It takes 112 feet to do the same.

2017 Mercedes-Benz SL-Class Fuel Economy

7.0/10

Fuel economy isn’t much of a concern in luxury sports segment. Anyhow, anybody would love to drive a luxury sports that offers better fuel economy than the contemporaries. 2017 Mercedes-Benz offers an impressive combined fuel economy of 20 mpg. The luxury sports coupe delivers 17 mpg in city conditions and 25 mpg on highways.

Model

Mercedes SL 550 Roadster

Porsche 911 GTS Cabriolet

jaguar F-Type R Convertible

BMW M6 Cabriolet

MPG (city)

17

18

15

14

MPG (highway)

25

26

23

20

MPG (combined)

20

21

18

16

BMW M6 Cabriolet offers a combined fuel economy of 16 mpg only. Jaguar F-Type R Convertible offers a better combined fuel economy of 18 mpg. Porsche 911 GTS Cabriolet bests SL 550 Roadster by 1 additional mile i.e. 21 mpg.

2017 Mercedes-Benz SL-Class Interior

8.5/10

“The SL also benefits from the available Magic Sky glass roof that allows you to enjoy a clear panoramic sunroof or transition to dark-tinted glass at the flip of a switch. Obviously, there's still the allure of open-top touring, and now the power-folding top can be operated at speeds up to 25 mph.” - Edmunds

Seating and Comfort

Passenger capacity of the 2017 Mercedes-Benz SL 550 Roadster is 2, which is acceptable. Jaguar F-Type R Convertible also allows only 1 passenger to travel along with the one driving the coupe. However, BMW M6 Cabriolet and Porsche 911 GTS Cabriolet features passenger space for up to 4 persons.

Model

Mercedes SL 550 Roadster

Porsche 911 GTS Cabriolet

jaguar F-Type R Convertible

BMW M6 Cabriolet

Passenger capacity

2

4

2

4

Front (Head/Shoulder/Leg) (In.)

39.1/55.5/42.9

38.8/52.0/45.8

37.0/56.5/43

40.3/56.9/42.1

Second (Head/Shoulder/Leg) (In.)

N/A

33.2/48.5/27.0

N/A

36.5/49.6/30.5

Front headroom, shoulder-room, and legroom available in the Mercedes SL 550 Roadster are 39.1, 55.5 and 42.9 inches, respectively. The headroom and legroom are above average, while the shoulder-room is fairly large.

Infotainment System

The intuitive infotainment system integrated to the SL 550 Roadster is complemented by a Harman/Kardon LOGIC7 sound system. Passengers enjoy immersive listening thanks to the Dolby Digital 5.1 surround sound technology. To make things hi-fi, the infotainment system comes with a COMAND, Cockpit Management, and Data, system. It allows the driver to effortlessly stay in control of most infotainment features and functions.

Interior Features

Ranging from featuring an upscale interior to the plenty of head and legroom spaces, the 2017 SL 550 Roadster is pleasing on the inside. And, it’s better than ever. The interiors of the latest 2017 Mercedes-Benz SL 550 Roadster comes with:

  • Comfortable seating with attractive interior work
  • Upscale and robust cabin
  • Modern digital features
  • Beautifully located infotainment system

Cargo Capacity

SL 550 Roadster features 8.5 cubic feet of cargo volume with rear seats up. Porsche 911 GTS Cabriolet offers merely 4.4 cubic feet of the same. Jaguar F-Type R Convertible features 7.0 cubic feet of the cargo space. The total cargo capacity of SL 550 Roadster is second only to BMW M6 Cabriolet. The coupe offers 10.6 cubic feet of the cargo volume with rear seats up.

Model

Mercedes SL 550 Roadster

Porsche 911 GTS Cabriolet

jaguar F-Type R Convertible

BMW M6 Cabriolet

Cargo Volume with rear seats up (ft.3)

8.5

4.4

7.0

10.6

2017 Mercedes-Benz SL-Class Exterior

7.8/10

Length, width and height of 2017 Mercedes-Benz SL 550 Roadster are 182.3, 82.6 and 51.2 inches, respectively. The width is the most in the competition. Ground clearance for the luxury sports coupe is 3.7 inches. This is the least in the competition. Most ground clearance is offered by the Porsche 911 GTS Cabriolet of 4.2 inches. BMW M6 Cabriolet also offers the same ground clearance.

Model

Mercedes SL 550 Roadster

Porsche 911 GTS Cabriolet

jaguar F-Type R Convertible

BMW M6 Cabriolet

Curb weight (lbs.)

3,959

3,396

3847

4515

Length(in)

182.3

178.3

176.0

193.0

Width(in)

82.6

72.9

74.2

74.8

Height(in)

51.2

50.8

51.5

53.9

Ground clearance (in)

3.7

4.2

3.9

4.2

Wheelbase (in)

101.7

96.5

103.2

112.2

Track width (in) F/R

62.8/63

60.6 / 60.8

62.4/64.1

64.2/63.5

Wheelbase for the 2017 Mercedes-Benz SL 550 Roadster is 101.7 inches. This is more than that of the 96.5 inches offered by the Porsche 11 GTS Cabriolet. BMW M6 Cabriolet offers the maximum wheelbase of 112.2 inches among the competition. In terms of curb weight, SL 550 Roadster weighs a total of 3959 lbs. This is better than that of the 4515 lbs. of BMW M6 Cabriolet. However, it is bulkier than that of the F-Type R Convertible and 911 GTS Cabriolet.

Exterior Features

There aren’t any major changes to the exteriors of the SL 550 Roadster. Nonetheless, a plethora of minor refurbishes are there to excite devotees of the luxury sports cars. Some of the important exterior feats to the 2017 Mercedes-Benz SL 550 Roadster include:

  • Intrinsically-designed grille featuring glistening chrome “diamond-block” texture
  • Sport lower body styling around wheels
  • Well-proportioned, both as a sleek closed coupe and a classic open roadster
  • Transforms to open roadster from closed coupe and vice-versa in less than 20 seconds
  • Panoramic rooftop with heat-reflecting transparent panel
  • Deep front air dam features large mesh air intakes as well as a color-keyed splitter

2017 Mercedes-Benz SL-Class Safety

In order to promise a robust performance and utmost comfort, the SL 550 Roadster comes with impressive safety and security feats. Some of the notable feats include, ABS and Driveline Traction Control, mbrace2 Emergency SOS, Collision Prevention Assist Plus Forward Collision and Dual Stage Drive and Passenger Front Airbags.

Moreover, the latest revamp of the Mercedes-Benz SL 550 Roadster comes with a back-up camera. There are a few safety sensors available too, including the Baby Smart Child seat Sensor and the Airbag Occupancy Sensor.

Safety Features

  • Electronic Stability Control (ESC)
  • ABS and Driveline Traction Control
  • Side Impact Beams
  • Dual Stage Driver and Passenger Seat-Mounted Side Airbags
  • mbrace2 Emergency SOS
  • Collision Prevention Assist Plus Forward Collision
  • Parking Pilot Automated Parking Sensors
  • Tire Specific Low Tire Pressure Warning
  • Dual Stage Driver and Passenger Front Airbags
  • Curtain 1st Row Airbags
  • Airbag Occupancy Sensor
  • Driver and Passenger Knee Airbag
  • Baby Smart Child seat Sensor
  • Outboard Front Lap and Shoulder Safety Belts -inc: Pretensioners
  • Back-Up Camera

2017 Mercedes-Benz SL-Class Competition

BMW M6 Cabriolet

The BMW M6 Cabriolet is another opportune luxury sports coupe to go for. Featuring a 4.4L DOHC V8 32V TwinPower Turbo engine under the hood, it sacrifices some comfort for power boost. Pricing options for the car starts from $122,300, exactly $10k more than that of recent revamp of the SL 550 Roadster. 560 hp of engine power is complemented by a 7-speed automatic transmission mode.

M6 Cabriolet is capable of hitting the 60 MPH mark in 4 seconds. This is 0.3 seconds faster than that of the SL 550 Roadster. However, the latest Roadster covers a quarter-mile 0.4 seconds earlier than that of the M6. Unfortunately, BMW M6 Cabriolet has the most CO2 emission value of 11.0 in the segment.

Jaguar F-Type R Convertible

The bid for Jaguar F-Type R Convertible starts from $103, 850. It is one of the least expensive car in the segment. In order to deliver a remarkable 550 hp of power and 502 lb.-ft. of torque, the luxury sports coupe relies on a 5.0L V8 Supercharged engine. It offers an 8-speed automatic transmission mode along 103.2 inches of wheelbase.

Basically, the Jaguar F-Type R Convertible trade-offs performance for luxury and features. It has additional 0.2-inch ground clearance than that of the SL 550 Roadster as well as better curb weight. Moreover, it has a reasonable combined fuel economy of 18 mpg. However, the latest revamp of SL Roadster has a better combined fuel economy of 20 mpg.

Porsche 911 GTS Cabriolet

Porsche 911 GTS Cabriolet is the sleekest, fastest and nimblest ride in the sports luxury cars segment. Moreover, it is also the one with the heftiest price-tag of $133,300. The bid for 911 GTS Cabriolet starts $10k and $20k ahead than that of the BMW M6 Cabriolet and the SL 550 Roadster, respectively. It packs a 3.0L Twin-tubrocharged boxer 6 engine along with a 7-speed automatic transmission mode.

911 GTS Cabriolet has the best 0-60 MPH time of 3.6 seconds in the segment. It also has the best combined fuel economy of 21 mpg, which is in fact impressive for a luxury sports coupe. The CO2 emission value of 8.4 for the car is also the least in the league. The cargo space is however much lesser than that of any other coupe in the competition, including the SL 550 Roadster.

2017 Mercedes-Benz SL-Class Final Verdict

Ventilated front seats, Airscarf and hands free trunk are some of the luxuries that stand out in the 2017 Mercedes Benz SL550. Add to that a variety of standard features that are absent in the Porsche and you get an almost complete cabriolet , well almost. The underwhelming and the nose heavy SL fails to deliver on the performance front only by a hair. It surpasses its brethren in the luxury and comfort suite.

Pros

A powerful engine

Premium interiors and cabin

Fully comfortable seats

Cushioned seating

Impressive fuel economy

Cons

Uninspiring infotainment system

A few options to go with

What's New?

A new Biturbo V8 engine and a revised front fascia is what makes this iteration of the SL550 special.Sadly the redesign looks forced and only happens to be at the front and the ugly taillights are still here.


Features

vehicle bio

base price

$110800

bodystyle

2dr Convertible

passenger capacity

2

drivetrain

RWD

engine type

displacement

285 cu. in.

horsepower

449 hp @ 5250 rpm

torque

516 lb.-ft. @ 1800 rpm

transmission

9-speed automatic

chassis

suspension front

independent front multi-link suspension

suspension rear

independent rear multi-link suspension

brake rotors (f/r)

12.6 in. ventilated disc brakes/14.2 in. ventilated disc brakes

dimensions

wheelbase

101.7 in.

length

182.3 in.

width

73.9 in.

height

51.2 in.

curb weight

3959 lbs.

ground clearance

3.7 in.

capacity

cargo volume

13.5 cu ft.

performance

zero to 60 mph

3.7 sec.

standing ¼-mile

11.8 sec.

braking (70-0 mph)

162 ft.

fuel economy

city/combined/highway

25/20/25 mpg

highway range

462.5 mi.

warranty

basic warranty

4 years/50000 miles

drivetrain warranty

4 years/50000 miles

corrosion warranty

4 years/50000 miles

roadside assistance

yes



Styles

 2017 Mercedes-Benz SL-Class in Magnetite Black Metallic color  2017 Mercedes-Benz SL-Class in Iridium Silver Metallic color  2017 Mercedes-Benz SL-Class in designo Magno Selenite Gray color  2017 Mercedes-Benz SL-Class in Cardinal Red Metallic color  2017 Mercedes-Benz SL-Class in Brilliant Blue Metallic color  2017 Mercedes-Benz SL-Class in Black color
Magnetite Black Metallic

Vehicle images are guides only and may not reflect the model's exact specifications/features– exact specifications/features should be confirmed with the seller.

Ratings

Exterior

7.8

Engine

8.5

Interior

8.5

Fuel Economy

7.0

Features

10

8.4

OVERALL RATING

Trims and Configurations

MSRP


 2017 Mercedes-Benz SL-Class SL 550

SL 550

power
449 hp @ 5250 rpm
fuel
Premium unleaded (required)
mpg
20 combined

$110,800


Style Prices MPG Engine Transmission Drivetrain Seats Colors
SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) Starting at $110,800 MSRP (25/20/25) 449 hp @ 5250 rpm, 4.7 L, V8, premium unleaded (required)
See Full Specs
9-speed automatic rear wheel drive 2 NA

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