During the 1957 Geneva Motor Show, Mercedes-Benz introduced a Roadster version of the 300 SL. The Roadster replaced the gullwing coupe, which Mercedes-Benz retired that same year. The Roadster featured a bevy of upgrades, and buyers paid for those upgrades with a retail price of $11,000. Mercedes-Benz billed the Roadster as being their “response to the demand in many countries for a particularly fast, comfortable, open sports car.” They were also quick to boast that “this automobile offers a wide range of technical achievements for even greater driving safety and motoring comfort as well as a high standard of practical everyday value for touring in real style.” It’s been a few decades since the unveiling of the 1958 Mercedes-Benz 300 SL Roadster, but that doesn’t mean that the demand has waned. A pristine example of the sports car is up for auction by RM Sotheby’s, and it’s sure to fetch a handsome price.