Like his brother closed with the main doors, the Roadster is based on a long hood and short rear end with automatically extending wing. Parallels to the legendary 300 SL roadster from the 1950s, in addition to the wide grille with large star and the fins on the hood and the vehicle flanks. The chassis and body are made of aluminum, the result is despite various strengthening measures an empty weight of 1,660 kilograms. Thus, the Roadster is only 40 kg of the coupe. Performance weight is 2.9 kilograms per hp.
Under the hood of the SLS AMG Roadster is working as the closed counterpart a V8 naturally aspirated engine with 6208 cc and dry sump lubrication. The 571-hp engine provides a maximum torque of 650 Newton meters at 4,750 revolutions ready. From zero to 100 km / h, the Mercedes accelerated in 3.8 seconds, top speed is electronically limited at 317 mph. The average consumption is specified at 13.2 liters per 100 kilometers. The power is transmitted over an ultra-light carbon fiber driveshaft to the rear axle. Standard double-clutch transmission is fitted with seven gears, the driver, four different driving programs. The combination of front-mid engine plus a transaxle arrangement is an ideal weight distribution of 47 percent to 53 percent behind the front arise. These values correspond to those of the coupe.
From 1 June 2011, the Mercedes AMG Roadster SLS be appointed in the autumn of the year he comes to the market. Are to invest 195 160 euros, or more than 8330 € for the coupe are due.