Summary: Mazda used the 2009 Detroit Auto Show to show off the next generation MAZDA3 five-door. Outside, the 2010 MAZDA3 offers refreshed styling that incorporates the Nagare design motif presented on many of Mazda's recent concept cars. Complementing the restyled exterior are a revised interior, new upscale options like keyless entry and start, adaptive xenon headlights, and a pair of new engines that offer more power but the same or better fuel economy than similar `09 models.