Background
By any measure the Mercedes-Benz R129 SL had been hugely successful. The Bruno Sacco designed, angular form seemed to be hewn out of solid steel, such was its solidity and apparent bomb proof quality. It was materially different from its R107 predecessor somehow. Cooler, more aesthetically aloof – less Bobby Ewing and more Grace Jones perhaps? Whoever the target market was, it was clearly a sizeable demographic with production continuing for over 12 years and more than 213,000 being ultimately built and sold. Not bad for a premium, German GT sports coupe. There were faults, of course, as anyone who has wrestled the tank-turret-esque hard top off an R129, will likely attest. It’s a minimum two person job, but easier with three, and there are even two pointy lugs protruding underneath the hardtop ready to scrawl an unruly signature in the paint of the boot lid or rear wings. Not to be recommended in breezes above “barely noticeable.”
The R129’s successor was in the works as early as 1996, and another significant change of tack was in prospect. This time new design chief, Peter Pfeiffer, (presumably concurrent with his picking pecks of pickled peppers duties) would oversee proceedings by casting the design brief far and wide. Ten designers and studios were asked to submit concepts resulting in hundreds of sketches being submitted. Twelve quarter scale models would be constructed to form the basis of computer digitisation techniques for the, then, state-of-the-art "CAVE" (Computer Aided Virtual Environment) system. Computer historians would only partly joke that it was called CAVE as that is what you would need to accommodate all the bulky hardware involved.
The resulting R230 emerged from a five year development cycle to premiere at the 2001 Frankfurt Motor Show. After the charming angularity of the R129, the new car looked impressively slippery, more organic looking, sleek even. It looked sleek because it was. All that early CAVE wizardry had delivered a car with an impressive 0.29 aerodynamic coefficient. The many R129 owners who had needed to have their boot lid and rear wing tops resprayed must have breathed a collective sigh of relief – a new electrically folding steel top was a key feature of the new model. The new “Vario” roof employed eleven hydraulic cylinders to deploy in just 16 seconds.
Other, if less obvious, innovations included Sensotronic Braking System (SBS) which removed any physical connection between the pedal and the pads. This enabled the ECU to link with suspension sensors to allocate braking to each wheel. Active Body Control (ABC) was also new and combined conventional spring and dampers with a hydraulic servo to manage roll and deliver switchable modes. Once again the Mercedes-Benz SL was bang up to date and ready to take on the world.