|EPA Est. MPG||20|
|Drive Train||Rear Wheel Drive|
|Passenger Volume||64 cu ft|
|Curb Weight||3959 lbs|
The 2018 Mercedes-Benz SL-Class has one of the most glorious heritages of any new vehicle. It's the direct lineal descendant of Mercedes' legendary 300SL Gullwing supercar from the 1950s and the 300SL convertible roadster that followed it. In fact, that big roadster first appeared for the 1957 model year, making the 2018 model the 61st anniversary of the SL two-seat drop-top. Cars don't get much more glamorous than the SL-Class.
The SL's styling was significantly overhauled last year. Often criticized as somewhat awkward-looking, the revisions visually pull weight out of the car's nose and make it appear smoother and more sophisticated. New lower bodywork along the flanks and rockers add some voluptuousness to the look, too. By any reasonable aesthetic standard, this is a significantly better-looking car than before.
But it's no smaller. This is a big, heavy roadster that densely packs in almost every piece of technology that Mercedes can imagine, including a retractable hardtop roof that folds back with the push of a single button. It's not a sports car in any meaningful way, but it's a spectacular touring machine that's powerful in any trim level and gloriously well-mannered even when pushed harder than most owners will ever push. It's a luxury machine where the greatest luxury is its overwhelming competence.
Mercedes offers the SL-Class in four varieties, starting with the SL 450 powered by a twin-turbocharged 3.0-liter V6 with 362 horsepower. Next up is the popular SL 550 with its twin-turbocharged 4.7-liter V8 coming in at 449 hp, followed by the more powerful, AMG-tuned SL models. That's the AMG SL 63 with a twin-turbo 5.5-liter V8 walloping out 577 hp and the slightly berserk AMG SL 65 with a twin-turbocharged 6.0-liter V12 knocking out an astonishing 621 hp.
The SL 450 and SL 550 both use a nine-speed automatic transmission, while the AMG models are fitted with a higher-capacity, seven-speed automatic gearbox. Though Mercedes offers its 4Matic all-wheel-drive system as an option in its sedans and SUVs, the two-seaters still use rear-wheel drive. Mercedes' Active Body Control system that hydraulically corrects for body roll under most circumstance is available on all SL models.
Fuel economy isn't usually a primary concern for buyers in this rarefied air, but the SL-Class carries EPA fuel economy ratings ranging from the SL 450's not shabby 23 mpg combined (20 city/28 highway) to the AMG SL 65's hungrier 16 mpg combined (13 city/22 highway).
Even with high-end cars such as the 2018 Mercedes-Benz SL-Class, it pays to be a smart shopper. And that means using the tools available here on Edmunds to find the right car at a great dealer.
2018 Mercedes-Benz SL-Class Overview
The 2018 Mercedes-Benz SL-Class is offered in the following submodels: SL 63 AMG, SL 65 AMG, Convertible. Available styles include SL 550 2dr Convertible (4.7L 8cyl Turbo 9A), SL 450 2dr Convertible (3.0L 6cyl Turbo 9A), and SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A). SL-Class models are available with a 0-liter gas engine, with output up to 0 hp, depending on engine type. The 2018 SL-Class comes with rear wheel drive. Available transmissions include: 9-speed shiftable automatic, 7-speed shiftable automatic. The 2018 SL-Class comes with a 4 yr./ 50000 mi. basic warranty, a unlimited yr./ unlimited mi. roadside warranty, and a 4 yr./ 50000 mi. powertrain warranty.
2018 Mercedes-Benz SL-Class features & specs
|Fuel Type||premium unleaded (required)||premium unleaded (required)||premium unleaded (required)|
|Basic Warranty||4 yr./ 50000 mi.||4 yr./ 50000 mi.||4 yr./ 50000 mi.|
|Base Engine Type||gas||gas||gas|
|Base Engine Size||4.7 l||3.0 l||5.5 l|
|Transmission||9-speed shiftable automatic||9-speed shiftable automatic||7-speed shiftable automatic|
|Drivetrain||rear wheel drive||rear wheel drive||rear wheel drive|
|Horsepower||449 hp @ 5250 rpm||362 hp @ 5500 rpm||577 hp @ 5500 rpm|
Is the 2018 Mercedes-Benz SL-Class a good car?
Edmunds experts have compiled a robust series of ratings and reviews for the 2018 Mercedes-Benz SL-Class and all model years in our database. Our rich content includes expert reviews and recommendations for the 2018 SL-Class featuring deep dives into trim levels and features, performance, mpg, safety, interior, and driving. Edmunds also offers expert ratings, road test and performance data, long-term road tests, first-drive reviews, video reviews and more.
Our Review Process
All of our reviews are written by a member of Edmunds' editorial team of expert car reviewers. Our team drives every car you can buy. We put the vehicles through rigorous testing, evaluating how they drive and comparing them in detail to their competitors.
We're also regular people like you, so we pay attention to all the different ways people use their cars every day. We want to know if there's enough room for our families and our weekend gear and whether or not our favorite drink fits in the cupholder. Our editors want to help you make the best decision on a car that fits your life.
What do people think of the 2018 Mercedes-Benz SL-Class?
Consumer ratings and reviews are also available for the 2018 Mercedes-Benz SL-Class and all its trim types. Overall, Edmunds users rate the 2018 SL-Class a 4 on a scale of 1 to 5 stars. Edmunds consumer reviews allow users to sift through aggregated consumer reviews to understand what other drivers are saying about any vehicle in our database. Detailed rating breakdowns (including performance, comfort, value, interior, exterior design, build quality, and reliability) are available as well to provide shoppers with a comprehensive understanding of why customers like the 2018 SL-Class.
SL 450 2dr Convertible (3.0L 6cyl Turbo 9A)
After owning/leasing 2 V8 SLs and 1 AMG SLK we stepped "down" to the new SL450 Twin Turbo V6. Not quite up to V8 performance levels but, surprisingly, close! According to Car & Driver's instrumented tests, and in contrast to Mercedes' typical conservative performance estimates, they say this car turns 0-60 in 4.5 seconds and breaks 107 MPH in the standing quarter mile. And, we don't doubt those stats for a minute! This car out handles our previous SLs and the AMG, and is amazingly close in virtually all other regards. We do miss the sound of the V8 engines, however, equipped with exactly the same options (the V8 excepted) our new 450 $tickered over $18,400 under the SL. And for that kind of savings, I'll sacrifice the V8 rumble for the nor-quite-as-exciting, V6 burbble. So far, we're delighted with our choice!
See all consumer reviews and retings for the 2018 Mercedes-Benz SL-Class
How can Edmunds help?
Edmunds has deep data on over 6 million new, used, and certified pre-owned vehicles, including rich, trim-level features and specs information like: MSRP, average price paid, warranty information (basic, drivetrain, and maintenance), features (upholstery, bluetooth, navigation, heated seating, cooled seating, cruise control, parking assistance, keyless ignition, satellite radio, folding rears seats ,run flat tires, wheel type, tire size, wheel tire, sunroof, etc.), vehicle specifications (engine cylinder count, drivetrain, engine power, engine torque, engine displacement, transmission), fuel economy (city, highway, combined, fuel capacity, range), vehicle dimensions (length, width, seating capacity, cargo space), car safety, true cost to own. Edmunds also provides tools to allow shopper to compare vehicles to similar models of their choosing by warranty, interior features, exterior features, specifications, fuel economy, vehicle dimensions, consumer rating, edmunds rating, and color
2018 mercedes-benz sl-class SL 550 2dr Convertible (4.7L 8cyl Turbo 9A), 9-speed shiftable automatic, premium unleaded (required)
20 combined MPG
17 city MPG/25 highway MPG
2018 mercedes-benz sl-class SL 450 2dr Convertible (3.0L 6cyl Turbo 9A), 9-speed shiftable automatic, premium unleaded (required)
23 combined MPG
20 city MPG/28 highway MPG
2018 mercedes-benz sl-class SL 63 AMG 2dr Convertible (5.5L 8cyl Turbo 7A), 7-speed shiftable automatic, premium unleaded (required)
19 combined MPG
16 city MPG/25 highway MPG
What options are available on the 2018 Mercedes-Benz SL-Class?
Available Mercedes-Benz SL-Class 2018 Submodel Types: Convertible, SL 63 AMG, SL63 AMG, SL55 AMG, SL65 AMG
Available Mercedes-Benz SL-Class 2018 Trims: SL550, SL500, SL 550, SL 400, SL 63 AMG, SL 450, SL63 AMG, SL55 AMG, SL320, SL600, SL65 AMG
Exterior Colors: Black, designo Diamond White Metallic, Polar White, Iridium Silver Metallic, Alabaster White, Diamond Silver Metallic, Steel Grey Metallic, Mars Red, Pewter Silver Metallic, designo Graphite, Capri Blue Metallic, Desert Silver Metallic, Diamond White Metallic, Lunar Blue Metallic, Palladium Silver Metallic, designo Night Black Magno (Matte Finish), Azure Blue Pearl Metallic, Brilliant Silver Metallic, Cardinal Red Metallic, Lunar Blue Metallic , Magma Red, Magnetite Black Metallic, Majestic Black Metallic, Obsidian Black Metallic, Obsidian Black Metallic (SPC), Selenite Grey Metallic, Shadow Grey (Matte Finish) Metallic, Smoke Silver Metallic, designo Cardinal Red Metallic, designo Graphite Metallic, designo Magno Cashmere White (Matte Finish)
Interior Colors: Black leather, Black Nappa premium leather, Stone leather, Ash leather, Bengal Red/Black Nappa premium leather, Bengal Red/Black leather, Ginger Beige/Espresso Brown leather, Black premium leather, Charcoal, Porcelain/Black Nappa premium leather, Ash, Brown/Black Nappa premium leather, Nut Brown/Black Nappa premium leather, Red/Black Nappa premium leather, Saddle Brown/Black Nappa premium leather, Ash/Grey leather, Black AMG Premium premium leather, Black Exclusive Nappa premium leather, Brown/Beige premium leather, Charcoal/Charcoal leather, Crystal Grey/Dark Grey leather, Ginger Beige/Espresso Brown Nappa premium leather, Natural Beige/Black Premium premium leather, Porcelain/Black Exclusive Nappa premium leather, Red leather, Red premium leather, Red/Black premium leather, Stone, designo Charcoal, designo Sand Nappa, designo Tuscany Beige Pearl premium leather
Popular Features: Auto Climate Control, Heated seats, Leather Seats, Power Driver Seat, Stability Control, Alarm, Audio and cruise controls on steering wheel, Multi-Zone Climate Control, Navigation, Trip Computer, Upgraded Headlights, Tire Pressure Warning, Bluetooth, Automatic Emergency Braking, Aux Audio Inputs, Post-collision safety system, Sunroof/Moonroof, USB Inputs, Cooled Seats, Parking sensors, Power Liftgate/Trunk, Back-up camera, Electronic Folding Mirrors, Pre-collision safety system, Keyless Entry/Start, Adaptive Cruise Control, Blind Spot Monitoring, Lane Departure Warning, Apple Carplay/Android Auto, Remote Start, Hardtop, Soft Top, Upgraded Stereo, Upgraded Engine
Engine/Mechanics: 8, 6, 12 cylinders
Fuel Types: premium unleaded (required), regular unleaded
Drivetrains: rear wheel drive
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