This 1957 Mercedes-Benz 300SL Roadster (chassis 7500469) is one of 1,858 examples produced from 1957-1963.
Finished in silver over black leather, the car is equipped with a black soft top and retains its original drivetrain, including the fuel-injected 3.0L inline-six, four-speed manual gearbox, and differential.
The 3.0-liter M198 straight-six produced 240 horsepower when new and features Bosch mechanical fuel injection, a first for a road car when it debuted.
The iron block is leaned over at an angle of 50° and equipped with dry-sump lubrication.
A mechanical rebuild was carried out from 2017 to 2019 and included blueprinting the block.
A new crankshaft and pistons were installed, along with new rod, main cap, and head bolts.
The timing gear and water pump were renewed, and the two oil pumps were rebuilt in Germany.
The assembled engine was then statically and dynamically balanced.
The four-speed manual gearbox and differential were rebuilt as well.
The W198 was Mercedes’ last body-on-frame design, and chassis 7500469 retains its original body (7500392).
Curb weight is just over 3,100 pounds. Finished in black from the factory, this example was repainted in silver during the 1990s.
European headlights were installed, and the removed US-specification parts are included in the sale.
New 15″ black wheels are mounted with Goodyear tires, and the rims were modified to hold factory hubcaps and chrome beauty rings.
A matching spare is retained in the trunk.
An additional set of five chrome factory wheels was refinished and polished and fitted with new tubes and tires.
The original steering box has also been resealed, and the four-wheel drum brake system was serviced with a new reservoir, booster kit, and diaphragm.
The interior color was changed to black in the 1990s, reupholstered the seats with perforated leather.
VDO instrumentation was overhauled by Palo Alto Speedometer.
The odometer was zeroed out during the service, as true mileage was already unknown.
New speaker wires were installed as part of the new harness, but no head unit is fitted.
A removed Becker Mexico radio and mounting face plate are included in the sale.
