What happens when a vehicle you want to trade-in is worth more than the new vehicle you want to order? would you walk away with a new truck and cash? or do dealers not want to trade like that?
Well, I'd say that if the dealer knows the value of the vehicle you are trading in is worth more than the vehicle you want, I'd do the deal, if the numbers worked out to where I'd make money in the end if I was the dealer... ;)
But, I would not offer you "retail" value of the vehicle you want to trade in... I'd make it worth my while at least?