Miller Golden Submarine
Oldfield worked with Miller, who developed and built carburetors in Los Angeles, to create a racing machine that would not only be fast and durable, but that would also protect the driver in the event of an accident.
Bob Burman, one of Oldfield's top rivals and closest friends, was killed in a wreck during a race in Corona, California. Burman died from severe injuries suffered while rolling over in his open-cockpit car. Oldfield and Miller joined forces to build a race car that incorporated an enclosed roll cage inside a streamlined driver's compartment to completely enclose the driver.
The Golden Submarine was built from aluminum with holes for the driver to look out. The gold color was achieved with a combination of bronze dust and lacquer. The car cost $US 15,000 to build.
Source: Wikipedia, 2015