My BM always gave me a "shop" car if I had to go to any training or functions that were more than 10 to 15 miles outside of our area. Of course, had I not said, "Hey, i've got training tomorrow in bum f*** Egypt, I need to use a car" she would have gladly let me you use my own car and gas. You just have to speak up and know your rights when it comes to using your own personal vehicle for work activities.