\nSustainable cars, public parks and a transit system to make us proud?\nCould this be the LA you know? We hear from Grand Avenue Civic Park designer Mark Rios\nabout visionary green spaces planned throughout the Southland. Plus, a\nbus-riding design writer reports on the makeover of the buses, and LA\nTimes auto critic, Dan Neil, has news about\xa0 radical cars coming up\nat the LA Auto show.