One sees it in films and tv all the time...
Officer: "He's getting away! Sir, I'm commandeering this vehicle. Please get out!"
Is this actually feasible?
Is a private citizen required to relinquish their privately owned vehicle if a police officer requests it, merely so the officer can continue a pursuit?
US Law. Assuming the citizen is legally authorized to drive and the officer has no other official reason to stop the driver. And the citizen is doing nothing to otherwise impede any pursuit.