According to at least one source, this was a project Kettering was involved in in the 1933 time period.
It may be a reference that is not valid, but it was titled the "X Car Project" or something like that. No name was given for the specific car although a lot of technical specs were given.
This may not be the answer you are looking for, but if it is, please give the point to gibbs, as he has done all of the groundwork investigation.