Electric vehicle stocks had a terrible week across the board as the price war that's been building around the world took another step in China. BYD (BYDDY -1.18%) (BYDD.F -0.89%) lowered prices for its EVs again, and Tesla (TSLA -1.85%) followed the move with nearly $5,000 in incentives for its vehicles. It was hard to make money in EVs before, and now it's becoming nearly impossible.Shares of Li Auto (LI -0.36%) dropped as much as 17% this week and closed the week down 16.4%, according to data provided by ...