The underpinnings for the Lynk & Co. Zero Concept are an open-source platform available for other companies to use.

The CEO said the automaker had booked "well over half a million" orders for the electric pickup in the form of $100 refundable deposits.

The companies, who partnered with the startup to develop fuel cell and electric commercial trucks, said they would continue to work with the company just days after Trevor Milton resigned as executive chairman following accusations that he made false claims about Nikola's technology.

“We have a shot at a record quarter for vehicle deliveries, but will have to rally hard to achieve it,” Musk wrote in an internal email. “This is the most number of vehicles per day that we’ve ever had to deliver.”