By Nick Carey, Nora Eckert and Joseph White LONDON/DETROIT (Reuters) – Stellantis wants to adopt the low-cost mindset of Chinese EV makers despite the European and U.S. tariffs CEO Carlos Tavares lambasts as anticompetitive, but the world’s No. 4 automaker must navigate trade barriers on both sides of the Atlantic if it wants to succeed. Tavares calls tariffs a “trap,”...