four-wheeled vehicle black, yellow, or white four doors a sign or light on the roof a taxi meter a driver's seat a fare indicator a partition between the driver and passenger seats a credit card reader
cab which has four-wheeled vehicle cab which has black, yellow, or white cab which has four doors cab which is a sign or light on the roof cab which is a taxi meter cab which is a driver's seat cab which is a fare indicator cab which is a partition between the driver and passenger seats cab which is a credit card reader