The Kleemann SL 55 Xtreme was the first limited edition vehicle series to leave the Kleemann production facility. The latest in the line of refined Kleemann Kompressor systems produced 640 HP at 5,800 rpm and 835 Nm (615 lb-ft) between 2,000 and 6,000 rpm. With an electronically limited top speed of 330 km/h (205 mph) and acceleration from 0–100 km/h (0-62 mph) in just 4,4 seconds, the SL 55 Xtreme had class leading performance. Eye-catching scissor doors provided a very characteristic appearance of the SL based car that truly lives up to the name Xtreme. Design details included a modified Kleemann front lip spoiler, polished TS-6 wheels, a modified rear diffuser and interior trimmed with Alcantara, Nappa leather and carbon fiber.