Related Clues:

• One may be flagged or hailed [get the AV Club xwords at avxwords.com]
• Those going after proceeds of crime turn back without Kalashnikovs initially
• Part of a pickup line
• Vehicle in a fleet
• Car with a checkered past?
• Fleet vehicle
• "Cash __": TV game show
• One involved in a pickup
• It may have a checkered past
• It's hailed in rain
• It's constantly hailed
• It's widely hailed as a convenient way to get around
• Hack's ride
• Arrival after an arm raise
• Driving compartment