Agree that it's better sell it on your own...their recent offer trade in price was low and unattractive despite my car is a merc bought from them previously. I got much better quote from outside car dealers.
On the contrary, I had a different experience with them. I was offered a trade-in price that is over and above what Jaguar Land Rover and PML offered me for my Bimmer 5er that was previously bought from PML.
Having said that, I was purchasing the run-out W211 Edition E E200 so I'm sure C& C strategy was to throw in the usual `over-trade' to the used car price so that it makes it seem less painful that you did not `lose' so much on your trade-in car. It sure work on me as I was already conditioned to the new car price as well as taking a significant hit on the trade in loss which is the usual case. Despite that, it's still a significant of approximately $45k of `overtrade' and that's before adding the usual insurance, finance discounts, service credits, frills.
Let me explain:-
New Car E200 Published Price:
1) Used Car Dealers selling equivalent model and age: $80-90k
2) Jaguar Land Rover Used Car Offer Price: $65k
3) PML Used Car Dealer Offer Price: $63k
4) C&C (Republic Auto) Offer Price: $115k (I know it's a ridiculous price coz it can't be higher than what Used Car Dealers are selling my 5er for)
So I guess it all boils down to how desperate C&C wants to clear stock.