Make cycling, transit, walking as sexy as driving with ad campaigns and financial support.
Great idea, but perhaps it should go even further: the goal should be to make walking, cycling, and transit even sexier than driving!
Drive More commented
That would not be very likely if you already cycle or walk, long distances in the hot sun besides busy traffic. You know, it is smelly, dirty and sweaty. Nothing sexy about that. Nothing will beat an air conditioned fancy car with a sexy babe beside you with room to pickup a few more.