@Anonymous
Since you do not OWN the car you can only use the actual expenses option...
Using your car while at your business destination. You can deduct actual expenses or the standard mileage rate, as well as business-related tolls and parking fees. If you rent a car, you can deduct only the business-use portion for the expenses.
https://www.irs.gov/taxtopics/tc511#:~:text=Using%20your%20car%20while%20at,non%2Dentertainment%2Drelated%20meals.
