Stanley A Meyer's Dune Buggy had EPGs installed the early stages of its development
The EPGs had a coefficient of power (COP) of 3 according to sources close to the project and its documents
The buggy was run successfully run with this configuration. Unfortunately, Stan was not permitted to continue with the development of the EPG after circa 1984
3tan then switched to the development of the WFC injector system and was perfecting it before his untimely death
