motor pool
US /ˈmoʊ.tər ˌpuːl/
UK /ˈmoʊ.tər ˌpuːl/

1.
a centralized fleet of vehicles maintained by an organization for general use by its staff or members
:
•
The company maintains a large motor pool for its sales team.
•
Employees can reserve a car from the motor pool for business trips.