Tesla Model X 3

Tesla saw sales below its forecast in the first quarter of the year due to “hubris.” The company, which releases its sales figures by the quarter, stated that it sold 12,420 Model S and 2,400 Model X vehicles in the first quarter. The sum is lower than the 16,000 figure that it had forecasted in February.

According to Tesla, the low delivery count for Q1 was blamed on the Model X, or more specifically – supplier parts shortages. The company also identified the root causes of the parts shortages, one of which includes “Tesla’s hubris in adding far too much new technology to the Model X in version 1.”

Secondly, it was caused by insufficient supplier capability validation and lastly, due to “Tesla not having broad enough internal capability to manufacture the parts in-house,” the company explained in a statement. The parts comprise of half a dozen out of more than 8,000 unique parts, which affected delivery of cars.

That said, soon after the supply shortages were taken care of, weekly production rate sprung to 750 units by the end of March. Tesla has assured that it is addressing all three root causes to ensure that no mistakes will be repeated with the new Model 3, which will begin production in late 2017.

Tesla however, has also reaffirmed that it is on track to deliver 80,000 to 90,000 new vehicles in 2016. Meanwhile, the company noted that its Q1 deliveries for 2016 were more than that of 2015 (up by 48% compared to the year before).

GALLERY: Tesla Model X