commercial vehicle
Refers to vehicles used for business purposes, such as trucks, vans, and taxis, as opposed to private passenger cars.
This parking lot is for commercial vehicles only.
The fuel efficiency of the new commercial vehicle has improved considerably.
トラック is a more specific term for a truck, which is a type of 商用車.
商用車 refers to commercial vehicles used for business purposes, in contrast to 乗用車, which is for carrying passengers.
Compound of 商用 (commercial use) and 車 (vehicle).