For 2017, the updated SLK also gets a new name: SLC. It features a retractable hardtop that does a great job at keeping the interior quiet. The SLK250 we tested had a 1.8-liter turbo four-cylinder that delivered ample thrust, and the new SLC300 uses a more powerful 2.0-liter engine coupled to a nine-speed automatic. There is a more powerful V6 SLC43 version. The SLK has crisp, enjoyable handling, with rock-solid body control and communicative steering. It can be both challenging and rewarding when driven on a track. The ride is firm but refined enough even for lengthy trips. The tight cabin is well-finished, with excellent seats that feature warm-air vents in the head restraints to keep your neck warm during chilly top-down drives.