Tom, there is a organization called NARCOA (North American Rail Car Operators Association) with 11 chapters across the country. These chapters set up excursions where you can operate your motor car. But it isn't all that easy either.
You have to belong to the organization, you have a "Book of Rules" you must read and pass a 50 question test, you have to have insurance to operate your car on an excursion, your car must pass a safety inspection by NARCOA as they require several items and safety equipment on your car, on your first trip out, you have an experienced operator called a mentor who rides along with you and makes sure you can operate the motor car properly and safely!
After all that, then its time to enjoy the ride!
