The new R 129 Roadster series, featuring the 300 SL, 300 SL-24 and 500 SL models, celebrates its world premiere at the Geneva Motor Show. The most important innovations are the electro-hydraulically operated top, the roll-over bar that extends automatically if the car threatens to overturn, and the integral seat. The new SL models are the first Mercedes-Benz production cars equipped with four-valve six-cylinder and eight-cylinder engines. The 300 SL-24 has the 162 kW / 220 hp 3-liter in-line six-cylinder M 104 unit, and the 500 SL has the 5-litreV8 M 119 with 240 kW / 326 hp. The sporty 190 E 2.5-16 Evolution (201 series) is also premiered. To homologate the Group A racing touring car it will be produced in a 500-unit limited edition and made available from the end of March.