Answer: tradesup

AnswerCrossword Clue
TRADESUPGets a better car, say
TRADESUPGets more for less
TRADESUPSwaps for a better model
TRADESUPExchanges for a better model
TRADESUPGets a nicer model
TRADESUPGets a better car
TRADESUPChanges for the better
TRADESUPGets nicer digs, say