Can I make deductions for my car that is used about 75% for work?

I own a car that is used about 75% for work. My work is Executive leadership for a 501c3 charity. Therefore I'm not a corporation owner, nor am I a business owner.

Can I make deductions if the car I own is used about 75% for the charity I work for? 

 

If so, what types of care expenses may I reasonably deduct?
Thanks!