Possible Clues:

• Human-powered taxi
• Rickshaw's kin
• Three-wheeled vehicle
• Foot-operated vehicle
• Beginning to drive one expands torso muscles? Legs, more like
• Calcutta conveyance
• Backing bread roll without drink not right: there's no fuel in it
• Costly cycle of human traffic?
• Tricycle with hooded seat at rear
• Pace bid failing with zero carbon vehicle