Probably a smartphone. Car makers have been notably stagnant in this category: http://www.porsche-design.us/Products/Electronics/Communicat...
If I had to make a guess, I'd say it's a new charging station. Wasn't there a rumor of a new home-charging product on the horizon?
A 4x4 pickup truck. Yep, definitely that. Named the "Fremontero".
Motorcycles? Bicycles? What is next on his transportation agenda...
“We are going to unveil the Tesla home battery, the consumer battery that would be for use in people’s houses or businesses fairly soon,” Musk said during an earning conference call last month.
Why the speculation? It seems like Musk already said exactly what is coming.