• European automakers’ face tariff hikes, high costs, rivalry
• Many firms concerned over Europe’s emissions goals for 2035
• Chinese automakers gaining market share in Europe, China

MUNICH, Sept 8 (Reuters) - Major automakers showcased their latest models at the Munich car show on Monday, unveiling new EVs and lower-cost models as Europe’s auto sector fights crises ranging from tariff hikes to rising costs and rivalry with Chinese firms on their home turf.