Chevrolet Cruze drivers Yvan Muller and Alain Menu made a 1.2 in Race 1; and Yvan Muller, Rob Huff and Alain Menu took a 1-2-3 in Race 2.
It what will be a record season for its domination, Chevrolet has built a gap of 304 points ahead of BMW with only 258 still at stake.
The reigning world champion, Yvan Muller, now leaves Spain with a 16-point lead. However, there are still plenty of opportunities for team mate Huff to reverse the situation.
The championship resumes in Suzuka, Japan, on 23rd October for rounds 19 and 20 where the last three rounds will be dominated by the fight for the Drivers' championship.
