1962 Mercedes-Benz 300SL Alloy-Block Roadster This 1962 Mercedes-Benz 300SL Roadster is one of 210 examples manufactured with an alloy engine block and four-wheel disc brakes during the final months of the model’s production. Chassis 003139 spent time with two New York owners before moving to Maryland in 1989 and remained with a collector in New Jersey from 1998 until the selling dealer’s acquisit...