However, the month was mostly encouraging for battery-electric vehicle sales, which rose 14% industrywide. According to a Bloomberg report, Tesla also reported a downturn in shipments from its Shanghai factory for the month. This was in contrast to the strong growth seen in China's plug-in car industry. During Tesla's first-quarter earnings call, Elon Musk said they believe the second quarter "will be a lot better" after several issues impacted production in the first quarter. Tesla shares are down around 1.8% premarket Wednesday.