These systems are complex. A common issue is unburned fuel mixing with engine oil, which can wash the cylinder bores if the car is only driven on short trips.

Famous for its roof-hinged doors, which were a design necessity due to the high tubular spaceframe chassis. It is pure racing DNA, but be warned: the cabin gets "brutally hot" as the exhaust runs directly beneath the driver.

These models replaced the coupe with conventional doors and a more refined driving experience. Later roadsters (post-1961) are particularly desirable as they introduced disc brakes and an alloy engine block . 2. Market Value and Rarity

While the body panels are largely aluminum (doors, hood, trunk), the main structure is steel. Look for poor crash repairs or corrosion hidden in the tubular frame. 4. Ownership Realities

Only 29 of these aluminum-bodied Gullwings were ever built. They are the "holy grail" of the series, with values often reaching between $4.6 million and $6.7 million . 3. Critical Inspection Points

The Ultimate Guide to Buying a Mercedes-Benz 300 SL Owning a (W198) is less like buying a car and more like acquiring a piece of rolling history. Originally derived from the 1952 W194 racing car, this icon was the fastest production vehicle of its time and introduced the world to direct fuel injection.

Expect to pay between $1.3 million and $1.8 million for an average condition Gullwing or Roadster . Exceptional examples can exceed $2 million at major auctions like those held by Gooding & Company or RM Sotheby's.