The outrageous Mercedes-Benz SLR McLaren super sports car is now available as a roadster with a fully-retractable top. Showcasing the latest in Formula 1 technology, the SLR McLaren is constructed almost entirely of carbon fiber and powered by a supercharged 5.5-liter, 617 horsepower V-8 engine. The SLR McLaren Roadster can achieve a top speed of 207 mph. The SLR legend of the 1950’s lives on stylistically in the latest model with side pipes behind the front wheels and gullwing doors.