Nio's production looks rather poor, but it should be noted that Tesla has been at the EV-making business for a while now, and NIO has only been at it since 2018. Comparing the 2 companies during their early days, NIO seems to be outmatching Tesla in terms of growth. According to Electrek, it took Tesla 5 years to reach the 300,000 vehicle mark in 2018. Nio took 4 years despite only really starting large-scale mass production in 2019 - a whole year sooner is nothing to scoff at.