Utilize the input text as a context reference, choose the right relationship between 'Paccar' and 'Truck' from the options.
Options: developer, member of, position held, product/material produced

Truck maker Scania, a unit of Volkswagen AG (Other OTC: VLKAF - news ) , said its orders rose 41 percent in the second quarter in Europe, compared to the same period last year, while U.S. rival Paccar Inc (NasdaqGS: PCAR - news ) said orders at its European unit, DAF, were 60 percent higher in the quarter, as growing freight traffic -- a key economic indicator -- drove sales.
product/material produced