“You'll love it! I was shocked at the performance level-was not expecting it in the power level at all.”
2018 Mercedes-Benz SLC: What's New, Specs & Features
Last updated August 4, 2026
The main 2018 change is that proximity keyless entry moved from standard equipment to an option. Otherwise, the Mercedes-Benz SLC carries over without major changes to its engines, styling, safety features, or infotainment.
About the 2018 Mercedes-Benz SLC
R172 roadster generation, facelifted and renamed from SLK to SLC for 2017; 2018 is the second model year after that update.
Mercedes positions the SLC as a compact two-seat luxury roadster that mixes open-air fun with everyday Mercedes comfort. Its biggest separator in this class is the retractable hardtop with a glass roof panel, giving it a coupe-like feel when closed and a traditional roadster feel when open. Compared with more hard-edged sports cars, the SLC leans toward stylish weekend driving, quick turbo power, and a polished cabin rather than track-first intensity.
The 2018 SLC remains a compact two-seat roadster with a power-retractable hardtop, including a panoramic roof panel on the SLC 300. The SLC 300 pairs a 241-horsepower turbo four-cylinder engine with a nine-speed automatic, while the AMG SLC 43 serves as the more performance-focused turbo V6 model.
What changed, by category
Tech
Proximity keyless entry moved from standard equipment to an option across the lineup.
2018 Mercedes-Benz SLC specs and features by trim
| Feature | |
|---|---|
| Engine | 4-Cyl, Turbo, 2.0 Liter |
| Transmission | Automatic, 9-Spd 9G-Tronic |
| Drivetrain | RWD |
| Fuel Type | Gas |
| MPG City | 25 mpg |
| MPG Highway | 32 mpg |
| Horsepower | 241 hp |
| Torque | 273 lb-ft |
| Trunk/Cargo | 10.1 cu-ft |
| Seats | 2 |
| Doors | 2 |
| Alarm System | |
| Automatic High Beams | |
| Blindspot Sensors | |
| Lane Departure Warning | |
| Park Assist | |
| Rear View Camera | |
| Alloy Wheels | |
| LED Headlights | |
| Panorama Moon Roof | |
| Rear Spoiler | |
| Bluetooth | |
| Navigation System | |
| Premium Audio | |
| Smartphone Interface | |
| USB Ports | |
| Dual-Zone Climate Control | |
| Heated Front Seats | |
| Leather Seats | |
| Proximity Keyless Entry | |
Frequently asked questions
What changed on the 2018 Mercedes-Benz SLC?
Proximity keyless entry changed from standard equipment to an option for 2018. The rest of the SLC lineup returned without major powertrain, styling, safety, structural, or infotainment updates.
Was the 2018 Mercedes-Benz SLC redesigned?
No, the 2018 SLC was not redesigned. It is part of the R172 generation and is the second model year after the former SLK was refreshed and renamed SLC for 2017.
How is the 2018 Mercedes-Benz SLC different from the 2017 model?
The main difference is that proximity keyless entry is optional on the 2018 SLC instead of standard. Otherwise, the two years are substantially alike because the major styling, engine, and technology update arrived for 2017.
What engines does the 2018 Mercedes-Benz SLC use?
The 2018 SLC 300 uses a 241-horsepower turbocharged 2.0-liter four-cylinder engine with a nine-speed automatic transmission. The AMG SLC 43 uses a turbocharged V6, and neither model received a major powertrain change for 2018.
Does the 2018 Mercedes-Benz SLC 300 have a retractable hardtop?
Yes, the 2018 SLC 300 has a power-retractable hardtop with a panoramic roof panel. With the roof raised, it provides the enclosed feel of a small coupe.
2018 Mercedes-Benz SLC Reviews
What owners are saying about the 2018 Mercedes-Benz SLC.
4.5
2018 Mercedes-Benz SLC
(72 reviews)
“The SLC300 is a beautifully designed vehicle. It is a joy to drive it. Getting in and out is a bit hard. Once you are in you do not want to get out. The thrill of acceleration is so much fun. If you live where sunshine is abundant, you got to have SLC300!”
“It is the best compromise of luxury, performance, convenience, security and safety on the market. Reasonable on gas and easy to drive and park in the city.”