Mercedes-Benz SLC 2016–2020 car dimensions: 4133 mm long, 1810 mm wide and 1301 mm high. Unladen weight is 1,430 kg. Boot space with the seats up is 335 litres.
The two-seat cabin has a standard 7-inch colour display run by a central controller plus Audio 20 system with Bluetooth and USB. Air conditioning is standard. dual-zone automatic climate is a trim option. Cruise control with speed limiter is standard. Active Brake Assist gives automatic emergency braking as standard, along with Attention Assist. A reversing camera is standard in most markets. Front and rear parking sensors with guidance, blind-spot warning and lane-keeping assist appear on higher grades or as packages.
Boot space is 335 litres with the hardtop raised. Lowering the roof reduces it to 225 litres. a luggage cover marks the usable limit so the top can still fold.
Official figures list no braked or unbraked towing capacity. the car was not homologated for towing in major markets and no factory towbar was offered. Payload is 315 kg.
Power sport seats with three-position memory give firm side support for cornering and long trips. Heated seats pair with available AIRSCARF neck-level heating to keep shoulders warm with the top down. The standard power retractable hardtop includes a tinted panoramic panel. MAGIC SKY CONTROL adds button-controlled variable tint. Dual-zone climate control is available on higher grades. The two-seat cabin feels snug and focused with quality trim and optional ambient lighting.
Fuel economy for SLC 300 is 23 city/32 highway/27 combined mpg in US specs. European combined figures range by engine from about 5.6 l/100 km.
ASSYST PLUS monitors use and displays remaining distance or time to next service. A and B services alternate.
Standard safety kit includes Active Brake Assist, ATTENTION ASSIST, dual fiber-reinforced roll bars, NECK-PRO head restraints, multiple airbags and rearview camera.
Petrol engines cover a range of turbo four-cylinders plus the AMG biturbo V6. Official figures show solid efficiency for the class, with the base models returning the best economy and the AMG higher consumption under hard use. A diesel was offered early in the run in some markets.
Servicing follows the ASSYST PLUS system that adapts the interval to driving style and conditions. The display shows when Service A or B is due. First services typically fall around one year or 10 000–15 500 miles depending on market and oil type. thereafter they alternate. Brake fluid and other items follow fixed time or distance schedules.
The car was never submitted for Euro NCAP testing so no star rating exists. Standard equipment covers radar Active Brake Assist that can warn and brake, ATTENTION ASSIST drowsiness detection, dual integrated roll bars, active head restraints and a full airbag set. Blind Spot Assist and a fuller Driver Assistance package with DISTRONIC and Lane Keeping Assist are available on many grades.
The power hardtop makes the car usable year-round and stores neatly with useful trunk space remaining when open. Regular dealer or specialist care keeps the folding mechanism, electronics and turbo engines reliable. High build quality and strong TÜV results help long-term ownership.
Length 4133 mm, Width 1810 mm, Height 1301 mm, Wheelbase 2430 mm (SLC 2016–2020)
Sources: manufacturer data, auto-data.net, vehiclesizes.com, MBUSA 2017-2019 SLC brochures.