features & specs

Performance highlights

Performance Highlights	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200
drive type	rear wheel drive	rear wheel drive
base engine size	4.7 L	3.0 L
base engine type	gas	gas
horsepower	449 hp @ 5250 rpm	362 hp @ 5500 rpm

See All Features & Specs

Performance highlights

Performance Highlights	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200
drive type	rear wheel drive	rear wheel drive
base engine size	4.7 L	3.0 L
base engine type	gas	gas
horsepower	449 hp @ 5250 rpm	362 hp @ 5500 rpm

See All Features & Specs

Performance highlights

Performance Highlights	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200
drive type	rear wheel drive	rear wheel drive
base engine size	4.7 L	3.0 L
base engine type	gas	gas
horsepower	449 hp @ 5250 rpm	362 hp @ 5500 rpm

See All Features & Specs

Safety Comfort & Convenience Performance Technology

Safety highlights

Safety Highlights	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200
automatic emergency braking	true	true
hid/xenon/upgraded lights	true	true
side-mounted airbags	true	true
antilock brakes	true	true

See All Features & Specs

Safety highlights

Safety Highlights	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200
automatic emergency braking	true	true
hid/xenon/upgraded lights	true	true
side-mounted airbags	true	true
antilock brakes	true	true

See All Features & Specs

Safety highlights

Safety Highlights	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200
automatic emergency braking	true	true
hid/xenon/upgraded lights	true	true
side-mounted airbags	true	true
antilock brakes	true	true

See All Features & Specs

Comfort & Convenience highlights

Comfort & Convenience Highlights	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200
sunroof	true	true
backup camera	true	true
parking sensors	true	false
heated seats	true	true

See All Features & Specs

Comfort & Convenience highlights

Comfort & Convenience Highlights	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200
sunroof	true	true
backup camera	true	true
parking sensors	true	false
heated seats	true	true

See All Features & Specs

Comfort & Convenience highlights

Comfort & Convenience Highlights	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200
sunroof	true	true
backup camera	true	true
parking sensors	true	false
heated seats	true	true

See All Features & Specs

Performance highlights

Performance Highlights	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200
drive type	rear wheel drive	rear wheel drive
base engine size	4.7 L	3.0 L
base engine type	gas	gas
horsepower	449 hp @ 5250 rpm	362 hp @ 5500 rpm

See All Features & Specs

Performance highlights

Performance Highlights	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200
drive type	rear wheel drive	rear wheel drive
base engine size	4.7 L	3.0 L
base engine type	gas	gas
horsepower	449 hp @ 5250 rpm	362 hp @ 5500 rpm

See All Features & Specs

Performance highlights

Performance Highlights	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200
drive type	rear wheel drive	rear wheel drive
base engine size	4.7 L	3.0 L
base engine type	gas	gas
horsepower	449 hp @ 5250 rpm	362 hp @ 5500 rpm

See All Features & Specs

Technology highlights

Technology Highlights	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200
navigation	true	true
bluetooth	true	true
USB ports	true	true
upgraded stereo	true	true

See All Features & Specs

Technology highlights

Technology Highlights	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200
navigation	true	true
bluetooth	true	true
USB ports	true	true
upgraded stereo	true	true

See All Features & Specs

Technology highlights

Technology Highlights	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200
navigation	true	true
bluetooth	true	true
USB ports	true	true
upgraded stereo	true	true

See All Features & Specs

See edmunds tested results

SCROLL DOWN

related vehicle information

2018 Mercedes-Benz SL-Class Information

Mercedes-Benz SL-Classes by City

Related Mercedes-Benz SL-Classes

features & specs

2018 Mercedes-Benz SL-Class

features & specs

2018 Mercedes-Benz SL-Class

	MSRP from $112,300

See all for sale

OVERVIEW

OVERVIEW	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300 See SL-Class Inventory See Inventory	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200 See SL-Class Inventory See Inventory	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850 See SL-Class Inventory See Inventory
Combined MPG	20	23	19
Transmission	7-speed shiftable automatic	7-speed shiftable automatic	7-speed shiftable automatic
Basic Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Base Engine Type	gas	gas	gas
Total Seating	2	2	2
Cylinders	V8	V8	V8
Drivetrain	rear wheel drive	rear wheel drive	rear wheel drive

COLORS

COLORS	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
Exterior Colors
Interior Colors

SAFETY

Safety	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
2 front headrests	true	true	true
LED headlamp	true	true	true
adaptive headlights	true	true	true
auto delay off headlights	true	true	true
brake drying	true	true	true
child seat anchors	true	true	true
cornering lights	true	true	true
daytime running lights	true	true	true
dual front side-mounted airbags	true	true	true
dusk-sensing headlights	true	true	true
emergency braking preparation	true	true	true
engine immobilizer	true	true	true
front head airbags	true	true	true
post-collision safety system	true	true	true
pre-collision safety system	true	true	true
remote anti-theft alarm system	true	true	true
self-leveling headlights	true	true	true
stability control	true	true	true
tire pressure monitoring	true	true	true
traction control	true	true	true
4-wheel ABS	true	true	true
Emergency braking assist	true	true	true
Front and rear ventilated disc brakes	true	true	true
Passenger airbag occupant sensing deactivation	true	true	true
Turn signal mirrors	true	true	true

COMFORT & CONVENIENCE

Comfort & Convenience	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
cruise control	true	true	true
driver assisted parking assist	true	false	true
electric power steering	true	true	true
front and rear parking sensors	true	false	true
front cupholders	true	true	true
front door pockets	true	true	true
keyless ignition	true	false	true
backup camera	true	true	true
tilt and telescopic steering wheel	true	true	true
universal remote transmitter (for garage door, security system, etc.)	true	true	true
Transmission controls and audio controls on steering wheel	true	true	true
Sun sensor	true	true	true
electrochromatic inside rearview mirror	true	true	true
interior air filtration	true	true	true
leather steering wheel	true	true	true
turn signal in mirrors	true	true	true
Climate control	true	true	true
Dual illuminating vanity mirrors	true	true	true

FUEL & MPG

Fuel & MPG	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
Combined MPG	20	23	19
EPA mileage est. (city/hwy)	17/25 mpg	20/28 mpg	16/25 mpg
Fuel tank capacity	19.8 gal.	19.8 gal.	19.8 gal.
Fuel type	premium unleaded (required)	premium unleaded (required)	premium unleaded (required)
range in miles (city/hwy)	336.6/495.0 mi.	396.0/554.4 mi.	316.8/495.0 mi.

ENGINE

Engine	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
direct injection	true	true	true
Base engine size	4.7 L	3.0 L	5.5 L
Base engine type	gas	gas	gas
Cam type	Double overhead cam (DOHC)	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Cylinders	V8	V6	V8
Horsepower	449 hp @ 5250 rpm	362 hp @ 5500 rpm	577 hp @ 5500 rpm
Torque	516 ft-lbs. @ 1800 rpm	369 ft-lbs. @ 1800 rpm	664 ft-lbs. @ 2250 rpm
Valve timing	Variable	Variable	Variable
Valves	32	24	32

MEASUREMENTS

Measurements	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
Cargo capacity, all seats in place	13.5 cu.ft.	13.5 cu.ft.	13.5 cu.ft.
Curb weight	3959 lbs.	3826 lbs.	4112 lbs.
EPA interior volume	64.0 cu.ft.	64.0 cu.ft.	64.0 cu.ft.
Ground clearance	3.7 in.	3.7 in.	4.4 in.
Height	51.2 in.	51.2 in.	51.2 in.
Length	182.3 in.	182.3 in.	182.7 in.
Maximum cargo capacity	13.5 cu.ft.	13.5 cu.ft.	13.5 cu.ft.
wheelbase	101.7 in.	101.7 in.	101.7 in.
Width	76.7 in.	76.7 in.	73.9 in.
Turning circle	36.2 ft.	36.2 ft.	36.4 ft.

FRONT SEATS

Front Seats	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
12-way power driver seat	true	true	true
12-way power passenger seat	true	true	true
height-adjustable driver seat	true	true	true
height adjustable passenger seat	true	true	true
leather	true	true	false
massaging	true	false	true
multi-level heating driver seat	true	true	true
multi-level heating passenger seat	true	true	true
sport front seats	true	true	true
ventilated driver seat	true	false	true
ventilated passenger seat	true	false	true
Driver seat with power adjustable lumbar support	true	true	true
front headroom	39.1 in.	39.1 in.	39.1 in.
front legroom	42.9 in.	42.9 in.	42.9 in.
Front shoulder room	55.5 in.	55.5 in.	55.5 in.
Passenger seat with power adjustable lumbar support	true	true	true
premium leather	false	false	true

DRIVE TRAIN

Drive Train	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
Drive type	rear wheel drive	rear wheel drive	rear wheel drive
Transmission	9-speed shiftable automatic	9-speed shiftable automatic	7-speed shiftable automatic
Rear limited slip differential	false	false	true

POWER FEATURES

Power Features	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
2 one-touch power windows	true	true	true
hands-free entry	true	false	true
Heated mirrors	true	true	true
Reverse tilt passenger only provides curb view when vehicle in reverse	true	true	true
remote keyless power door locks	false	true	false

INSTRUMENTATION

Instrumentation	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
clock	true	true	true
compass	true	true	true
external temperature display	true	true	true
tachometer	true	true	true
trip computer	true	true	true

SUSPENSION

Suspension	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
four-wheel independent suspension	true	true	true
Front and rear stabilizer bar	true	true	true

IN-CAR ENTERTAINMENT

In-Car Entertainment	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
11 total speakers	true	true	true
2 subwoofer(s)	true	true	true
6 Months of provided satellite radio service	true	true	true
600 watts stereo output	true	true	true
DVD player	true	true	true
USB connection	true	true	true
auxiliary audio input and USB with external media control	true	true	true
harman/kardon premium brand speakers	true	true	true
harman/kardon premium brand stereo system	true	true	true
memory card slot	true	true	true
satellite radio w/real time traffic satellite radio	true	true	true
speed-sensitive volume control	true	true	true
surround audio (discrete)	true	true	true
video monitor	true	true	true
AM/FM stereo	true	true	true

WARRANTY

Warranty	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
Basic	4 yr./ 50000 mi.	4 yr./ 50000 mi.	4 yr./ 50000 mi.
powertrain	4 yr./ 50000 mi.	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Rust	4 yr./ 50000 mi.	4 yr./ 50000 mi.	4 yr./ 50000 mi.

TELEMATICS

Telematics	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
Airbag Deployment Notification	true	true	true
Emergency Service	true	true	true
Stolen Vehicle Tracking/Assistance	true	true	true
Vehicle Alarm notification	true	true	true
Concierge Service	true	true	true
Destination Download	true	true	true
Destination guidance (also Turn-by-Turn Navigation)	true	true	true
Roadside Assistance	true	true	true

TIRES AND WHEELS

Tires and Wheels	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
alloy wheels	true	true	true
19 x 9.5-in. wheels	true	true	false
285/30R19 tires	true	true	true
Performance tires	true	true	true
19 x 10.0-in. wheels	false	false	true

INTERIOR OPTIONS

Interior Options	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
Red Seat Belts	true	true	true
Black Headliner	true	true	false
DINIMICA Headliner Beige	true	true	true
Silver Seat Belts	true	true	true
Beige Headliner	true	true	false
Illuminated Door Sills	true	true	false
Bang & Olufsen BeoSound Premium Sound System	true	true	true
Wood/Leather Steering Wheel	true	true	true
AMG Sport Steering Wheel in Leather/DINAMICA	true	true	false
Sport Steering Wheel	true	true	false
DINAMICA Headliner Black	true	true	true
Floormats	true	true	false
Grey Headliner	true	true	false
AMG Performance Steering Wheel- DINAMICA Grips	false	false	true

EXTERIOR OPTIONS

Exterior Options	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
Wheel Locks	true	true	true
19" AMG Multi-Spoke Wheels	true	true	false
MAGIC SKY CONTROL	true	true	true
Soft Close Doors	true	true	true
19" 10-Spoke Wheels	false	true	false
AMG Exterior Carbon Fiber Package	false	false	true
Red Painted Brake Calipers	false	false	true
19"/20" AMG Black Cross-Spoke Forged	false	false	true
19"/20" AMG Silver Cross-Spoke Forged	false	false	true
Rear Decklid Badges Delete	false	false	true

PACKAGES

Packages	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A) MSRP from $112,300	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A) MSRP from $88,200	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A) MSRP from $152,850
Driver Assistance Package	true	true	true
Premium Package	false	true	false
AMG Night Styling Package	false	false	true

	SL 550 2dr Convertible (4.7L 8cyl Turbo 9A)	SL 450 2dr Convertible (3.0L 6cyl Turbo 9A)	SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A)
	See SL-Class Inventory See Inventory	See SL-Class Inventory See Inventory	See SL-Class Inventory See Inventory

2018 Mercedes-Benz SL-Class Features & Specs

related vehicle information

2018 Mercedes-Benz SL-Class Information

Mercedes-Benz SL-Classes by City

Related Mercedes-Benz SL-Classes