The Mercedes-Benz 300 SL is one of the most iconic cars of the three-pointed star brand. The auto remains as one of the most in demand classic vehicles in auctions. However, most units sold in the market nowadays are restored versions of the car and have been passed from one owner to another.

Recently, two 1950s Mercedes-Benz 300 SL cars have been advertised for auction. One is a 1955 Gullwing and the other is a 1957 Roadster. According to UK’s The Sun the autos remain in their unrestored condition.

The two have belonged to the same owner since they have been brought brand new. The source said the SLs were originally owned by a publishing executive in the midwest US.

The Gullwing model is expected to fetch around £1 million in the auction while the Roadster is estimated to sell around £800,000. The cars will be auctioned at the Gooding & Company during their Pebble Beach Sale in California this coming August 18.

The Mercedes SL is fitted with a 3.0-liter straight-six engine. The output of the unit is at 215 bhp with a top speed of 155 mph. At one point in history, the numbers made the SL the fastest car of its time.

The Gullwing comes in British Racing Green finish and in tan leather interior. Despite its 62 years of existence, it only raked a total of 16,000 mileage.

The Roadster is in silver-blue metallic paint and the cabin showcases grey leather surfaces. The auto was only driven 38,000 miles.