Asian carmakers, which bet big on expanding in Russia, face a test of their commitment to a market they once hoped was set to surpass Germany’s by size as the ruble plunges and auto sales skid.

Manufacturers including Japan’s Nissan, China’s Great Wall and South Korea’s Hyundai and its Kia affiliate have been stepping up investment in Russia in recent years and are gaining market share in the country at the expense of European and U.S. rivals.