I have a case where the defendant simply went across the center line and hit my client head on and the defendant is refusing to admit liability. I need cases for motion for summary judgment.

Is there a rule that creates a presumption of agencywhen a person who owns a car permits another to drive it-either on a regular basis (like a son or a girlfriend of the owner) or on an irregular basis (say one allows a friend to borrow his car to go to the barber shop or golf course). In the case I have in mind there is no benefit derived by the owner.