Mercedes Benz SL600 W129
Year of Manufacture: 1995
Power Output: 394 hp
Engine Displacement: 5,987 cm3
Number of Cylinders/Valves: 12/4
Weight: 1,980 kg
Catalogue Number: 11
The Mercedes-Benz SL R129, the 4th generation of the SL-Class—also known by the nickname “The Iron” (Žehlička)—is a magnificent vehicle that introduced numerous innovations to the automotive world. At its debut in 1989, Mercedes had filed no less than 20 patents for the SL model. Among the most interesting features is the pop-up roll bar behind the occupants’ heads, which deploys in just 0.3 seconds to protect passengers in the event of a rollover.
The car is also equipped with self-tensioning three-point seat belts mounted directly into the seats, which are built with a rigid frame made from five magnesium components capable of absorbing some of the forces during a side impact. In addition, it features four-piston disc brakes.
Notably, the car includes an electro-hydraulically operated convertible roof, which can retract or extend in 30 seconds. Another highlight is the multi-link rear suspension, providing excellent handling at high speeds while maintaining the desired level of comfort.
The legendary design was created by Bruno Sacco, and then-company director Werner Niefer, who also participated as a test driver, referred to the R129 as his personal favorite.
The SL R129 underwent two major facelifts, in 1995 and 1998.
In 1994, the car received minor updates that were reflected in the 1995 model range. For example, the odometer changed from mechanical to electronic, and the vehicle featured an option for a portable mobile phone with voice-activated dialing. US-spec models also received newly designed clear indicators for the front turn signals.
Each facelift brought subtle visual updates, additional new equipment, and engine improvements or replacements. With the final update, driving enthusiasts were treated to AMG versions—starting with the V8-powered SL 60, later joined by the SL 70 and the mighty SL 73 with a V12 engine, which also appeared in the Italian supercar Pagani Zonda. The last model before production ended was the SL 55 AMG, which later lent its technology to the next generation SL 55 AMG R230.
Over its 12-year production run, a total of 213,089 units were manufactured at the Bremen plant.
