Apart from the renaming of the SLK to SLC, the open-top two-seater also comes with a new AMG nomenclature. Available in normal and AMG versions, the SLC version houses a four-cylinder powerplants whereas the top-flight AMG takes up a six-cylinder engine. The AMG version’s engine is differentiated by red aluminium inserts on the engine cover.
The 9G-Tronic Sport transmision is specially matched to the demands of the SLC43 AMG. By specifically adapting the software, AMG has been able to significantly shorten the shift times. The multiple downshift allows even faster short bursts of speed, while the double-declutching function in the “Sport” and “Sport +” transmission modes make for an even more emotive driving experience. In “Sport +” mode, partial ignition interruptions provide even faster gearshifts. Meantime, shift paddles allow fast manual shifting of the transmission without the driver needing to take their hands off the steering. Shifting in “Manual” mode, which is activated using a separate button next to the selector lever, is twice as fast as in the other transmission modes. Also, the transmission stays in the selected gear and does not automatically shift up when the engine speed reaches the limit.
The Mercedes-AMG SLC43’s efficiency is further emphasized by the addition of specially developed suspension and unique engine mounting, along with a rear-axle gear unit. The driving dynamics for the SLC43 have been further enhanced thanks to the suspension with adaptive adjustable damping and the handling package with mechanical LSD (limited-slip differential) on the rear axle; part of the AMG Ride Control suite. With the standard sport suspension or the optional AMG Ride Control sport suspension with adjustable damping, the Mercedes-AMG SLC43 offers two suspension options designed for high lateral acceleration and reduced roll. Common to both suspensions are the specially developed front and rear axles, which guarantee precise wheel location and high camber stability on compression and rebound.
In addition, the three-link front axle has been provided with stiffer steering knuckles, improved elastokinematics and increased negative camber. In combination with the newly developed wishbone guide bearings, this design results in significantly more agile cornering, more precise and direct suspension feedback from the road and fast cornering speeds. Furthermore, the four-link rear axle with optimized elasto-kinematics, increased negative camber and special forged-aluminium track rods not only improve the driving dynamics, but also make the SLC43 more controllable when driven to its limits.
On the aesthetics, the Mercedes-AMG SLC43 has a recognizable outlook, compared to the SLK55 AMG it replaces. A couple of highlights that make the Roadster shine are the high-sheen 18-inch AMG multi-spoke light-alloy wheels, painted in high-gloss black, exterior mirror housings in high-gloss black act, front wings with a silver chrome fin and biturbo initials. The Roadster’s proximity to motor sport is visually underscored by red-painted brake callipers, a Performance steering in Nappa leather with DINAMICA microfiber and red topstitching, as well as an IWC analogue clock at the center of the dashboard. Other options include the Dynamic LED headlights with brand-typical eyebrows, 18-inch wheel/tyre combinations, the AMG Night package, exclusive designo paint finishes, various leather upholstery options, the COMAND infotainment and communications system, a Harman/kardon® Logic 7 Surround Sound system, as well as ambient lighting in solar red, polar blue or polar white illumination.