The billionaire pet projects go head to head.
It’s all thanks to his blessed Tesla stock.
Musk has gained $4.2 billion total from Tesla’s stock rallies.
But other experts are wary of the technology’s viability.
Company stock is up 163 percent from the beginning of the year.
Leno is one of the first people outside Tesla to try it out.
It would seem the billionaire is keeping his promise.
The billionaire car exec is about to become even richer.
The electric automaker is joining its competitors in making the life-saving machines.