The upcoming Tokyo Motor Show is expected to serve as a showcase for new engine technology from Mazda. According to Yamanouchi, "Our new gasoline engines will achieve the same fuel economy as current diesel engines, and our diesel engines will achieve similar fuel economy as existing hybrids."
Taking this incremental approach will allow Mazda "to offer affordable eco-friendly vehicles to 90 percent of the car-buying public, not to just a limited segment of the market." Expect to see stop/start, improved aerodynamics and low rolling-resistance tires added to the aforementioned weight reduction combined to create relatively low-cost eco-friendly vehicles.
[Source: Automotive News – Sub. Req.]