Mazda CEO Akira Marumoto is leading an electrification push that should help the Japanese automaker slash its CO2 footprint and avoid paying big fines in Europe. A recently announced emissions-pooling deal with Toyota will also help. In addition, Mazda is working with Toyota on electrification technologies, but Marumoto says "unique" engines will remain part of his brand's identity. He discussed the challenges Mazda faces with Automotive News Europe Correspondent Andrea Malan.