Maybe this should be in the JOKES section.
Such a simple expression, "the truck", can mean different things.
In the US, the expression is more like (with emphasis) "THE TRUCK", in families with a pick up truck and another type of vehicle. THE TRUCK is usually the primary vehicle used by the family even when the other vehicles are newer or in better condition.
THE TRUCK remains in this number one status until the youngest child has obtained their first driver license. Usually the youngest child would refuse to accept THE TRUCK as a personal vehicle when Dad gets a new truck. (No self respecting teenager would be seen THE TRUCK.) Dad usually sells THE TRUCK and then purchases a new pick up. This new pick up is immediately elevated in status to "THE TRUCK".
As the children grow and move from the parental nest, the status of THE TRUCK changes. It is now, "Dad can I use THE TRUCK to move into my new apartment?"
Even neighbors and friends refer to the vehicle as THE TRUCK, especially when they do not have a pick up of their own. There are requests by friends and neighbors to borrow THE TRUCK for small moving tasks. ("We just purchased ... and could we use THE TRUCK to bring it home?")
