The Gurney Eagle is the most successful American built F1 car ever. Dan Gurney, with help from Carroll Shelby, designed and raced his own car. It has a Westlake V12 engine producing over 400 hp. But the motor had a problem with oil pooling in the sump, reducing its power output and reliability. The chassis was made of exotic metals, and the body was made of magnesium. Dan Gurney said it was like racing a Ronson cigarette lighter. He was aware of the 84 people killed by a magnesium body car that crashed and burned at Le Mans in 1955.