March 12, 2022 marks the 70th anniversary of the presentation of the Mercedes 300 SL (W194) racing sports car on a highway near Stuttgart. A brief review of the innovations introduced by the seven generations of Mercedes SL.
The launch of the new generation Mercedes SL is fast approaching. Mercedes has announced its presence at the Munich Auto Show in September where the new Mercedes SL will be presented.
In the preview of this historic event (historically because the SL generations had longer life cycles than a normal model), Mercedes presented a list of innovations introduced by the seven generations of the SL roadster.
Mercedes 300 SL racing sports car W194 (1952)
It was the first Mercedes competition car after the Second World War and the name SL was the abbreviation for super light. It had a height of only 1225 mm and the engine mounted at an angle of 50 degrees to the left had dry sump lubrication, a solution adopted only by supersport cars.
Mercedes 300 SL W198 (1954-1957)
The 300SL street model derived from the racing model was the first car in the world with a 4-stroke engine with direct petrol injection introduced in series production. 1400 coupes and 1858 convertibles were produced and out of the 1400 coupes, 29 had an aluminum body that reduced the car’s weight by 130 kg. These models are very rare and has a price of around 1.5 million euros compared to 800,000-1 million euros for models with steel body.
Mercedes 300 SL Roadster W198 (1957-1963)
It was the last Mercedes pasenger car with a separate frame. In 1961 he received disc brakes and a light alloy engine block.
Mercedes SL W113 (1963-1971)
It was the first SL with an automatic transmission. It was offered in three versions: roadster with a folding top, coupe with a removable roof and roadster top and Coupé with a removable roof, but without the roadster top. Mercedes SL W113 came up with innovations for passenger safety such as Safety body with rigid occupant compartment, deformable front and rear sections and articulated steering column.
Mercedes SL R107 (1971-1989)
It was the longest-lived SL and the first SL to receive a V8 engine (350 SL and 450 SL in 1971). In 1985 it was the first SL with a catalytic converter.
The W113 was also the basis for the development of the SLC luxury class coupe (C107) which later became the S-Class coupes.
Mercedes SL R129 (1989-2001)
Designed by Bruno Sacco, this is one of the most beautiful SL models. It came with two major innovations: Fully automatic roll-over bar even with the hardtop in place that activates in just 0.3 seconds and seats with integrated seat belt. The SL R129 could be ordered with optional ADS adaptive suspension and in 1995 the ESP system was introduced.
It was the first SL with V12 engine (SL 600, 1992) and the first to be modified by AMG. The SL 60 AMG with a 381 HP V8 was launched in 1993.
In 1995, the SL 500 and SL 600 received a 5-speed automatic transmission with torque converter. In 1999 appeared the most powerful SL so far: SL 73 AMG with 525 HP.
Mercedes SL R230 (2001-2012)
It was the first SL with a Vario roof, and the Cx reached a new record of only 0.29.
The SL R230 had as an option the new Active Body Control suspension system and in 2004 the SL 65 AMG version became the most powerful roadster in the world with 612 HP.
Mercedes SL R 231 (2012-2020)
Mercedes returns to light construction with a high percentage of aluminum for the body and other components. The SL R231 was 140 kg lighter than its predecessor (the body was 110 kg lighter and the torsional rigidity 29% better). The Cx reached a new record of 0.25, and the SL 65 AMG promised even more power reaching 630 HP and 1000 Nm.
Mercedes-Benz SL-Class 70th Anniversary
12/06/2021
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Mercedes-Benz | Mercedes-AMG
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