The latest, and perhaps last, edition of the SL Roadster is available in two trim levels: SL 450 and SL 550. The base model comes equipped with a 3.0-liter turbocharged V6 that delivers 362 hp and 369 lb-ft to the rear wheels, mated to a nine-speed automatic transmission. The SL 550 gets a stronger 4.7-liter turbocharged V8 that develops 449 hp and 516 lb-ft. No other transmissions or drivetrains are offered.
The starter model is anything but basic, with leather upholstery, 16-way heated power seats with memory, Keyless-GO, hands-free access, and dual-zone climate control. The eight-inch Comand interface grants access to navigation, Bluetooth, Apple CarPlay, Android Auto, HD Radio, and SiriusXM, played back through a nine-speaker Harman Kardon sound system.
The upper trim gets heated and ventilated multi-contour seats with massage functions as well as Airscarf neck warmers for both seats and active parking assist. Other available features include Nappa leather upholstery, soft-close doors, and a 12-speaker Bang & Olufsen sound system.
The Mercedes-Benz SL-Class is a premium vehicle that comes standard with most of the features available to the convertible. Still, there are a few upgrades available to those willing to pay a bit extra over the already substantial asking price. The Driver Assistance Package ($2,250) is available to both trim levels, adding adaptive cruise control, active blind-spot assist, active lane keeping assist, Pre-Safe Plus, and enhanced forward collision avoidance with front cross-traffic alert. The SL 450 is a step below the SL 550 in terms of features, a gap that can be closed without adding the V8 engine when you equip the Premium Package ($4,100). This sees active parking assist, ventilated multi-contour seats, and a neck-level heating system added to the base model. For $2,500, you can equip Mercedes-Benz' patented Magic Sky Control, which functions as a state-of-the-art sunroof by directing electrical current through the glass roof to alter the transparency to block or allow light in without the worry of UV rays. A 12-speaker Bang & Olufsen premium system ($5,400) is also available if the standard fare isn't enough for you.