RFID tags on units.
RFID pick-up sensors placed to pickup movement thru a RFID gate, records movement from one area to another. Like moving from back of building to front, off of lot (test drive, service, etc), return to lot, into service entrance, out of service, into body shop, etc...
Potential to automate "time to retail"
Day 1). Tradein Unit is assigned stock# and RFID tag
Day 4). Unit sits "out back"
Day 5). RFID crosses into Service (seen as "In Service")
Day 7). RFID crosses out of service
Day 7). RFID crosses out back sensors (seen as "out back")
Day 9). RFID crosses into Bodyshop (seen as "In BodyShop")
Day 10). RFID crossed out of bodyshop
Day 14). RFID crosses into detail shop (seen as "In Detail Shop")
Day 14). RFID crosses out of Detail shop
Day 14). RFID crosses out to inventory area (seen as "Ready for Sale")