Related Clues:

• Town cars?
• Trucker's rest areas, sometimes
• Their business is picking up
• Mass transit vehicles
• Prepares for takeoff, say
• Quarters for truckers
• Occupants of some stands
• Even the greatest men hail them
• Prepares for takeoff
• They arrive and take off at airports
• Coaches
• Hack pack members
• Pickup enclosures
• They're for hacks
• Airport sights