For an automaker that sold fewer than 150,000 vehicles worldwide last year, Tesla continues to create a stir among economic development officials inside and outside the U.S.
The electric vehicle maker is on the prowl for assembly capacity, battery production sites and possibly more distribution space.
But it doesn't always share details of its plans with the outside world.
In late November, Tesla was discovered by local media to be building an 870,000-square-foot building in Lathrop, Calif., near a site where it began leasing industrial space in 2014, about 60 miles northeast of its Fremont assembly plant.
Tesla hasn't commented on its plans for the building, even though it's nearly completed. One theory is that growing production of the Model 3 sedan in Fremont is creating the need for new vehicle prep and distribution space.
Tesla has ramped up Model 3 production in Fremont to about 5,000 a week, although the project has been hampered by factory capacity problems and bottlenecks for several months.