Traveling up Claremont Ave. toward Fish Ranch Road, I was behind two other cars (first car was 3 car lengths ahead of me. Going 30 - 35 MPH. Red Volvo was tailgating me. Double yellow line road - no passing. Suddenly Volvo crosses double yellow line and tries to pass me. They remained in the opposing lane for several seconds as it was difficult to pass and slip in front of me because the other cars were close. Volvo nearly hit my car as it tried to pass. I allowed the Volvo driver to move in front of me. Very dangerous and reckless.