Possible Clues:

• Use the HOV lane, maybe
• Drivers sharing complain, ladies perhaps being rejected
• Segment of The Late Late Show on CBS in which 4 7 hosts celebrities in his car
• Dagwood daily ritual
• Rap medley in cool set-up for Men at Work that's environmentally friendly
• Not drive by oneself to work
• Commuter group
• ridesharing.com service
• Girl crosses river in commuting arrangement
• Marx wasting hour visiting business with liberal idea to mobilise workers?