The Amish generally do not own cars. They are a horse and buggy people. Yet, in our world of 21st-century technology and constant time demands, the Amish have plenty of reasons to use cars. So they hire drivers. This is especially true for longer trips, such as visiting family out of state, attending a funeral, or a wedding. Over the years I’ve had many experiences with these non-Amish people who drive the Amish.
Like any group of people, some are wonderful, and they are fair. Others really soak the Amish with their per-mile rate. Pennsylvania is regulating Amish drivers, they have been for several years. And I’m actually completely supportive of that. I’ve seen too many Amish taken advantage of. You can read more about Pennsylvania's Amish taxis here.
In other states, the free market simply dictates what drivers charge and, in theory, I'm fine with that too as long as people aren't taken advantage of and charged too much. This is an "Amish taxi" that I saw on I-70 the other day in Illinois, this service "Anna's Amish Taxi" from Ohio has their van all fixed up and it is probably a full-time job for the owner!