Tu Le says there were plenty of bright spots in NIO Inc.'s (NIO) latest earnings, which he argues lays the groundwork for significant growth. He adds that it and Chinese competitors like BYD Co. (BYDDY) continue to push the "innovation envelope" as Tesla (TSLA) struggles to accelerate international sales. Lauren Fix makes the case that it's hard for any EV maker to break out in North America. She says there's not enough interest in EVs to generate profits companies are seeking. Another headwind Lauren labels: tariffs, and how they add to already expensive costs for most consumers.