Do they have something there you can pay for an individual to experience driving an actual race car on the track ???

Give them a call

I would think that driving experiences like Richard Petty or Rusty Wallace go there. Check out their websites. There may be others but those 2 will give you the better experience

Yup

Yes they do, and I've taken part in it. It's through the Rusty Wallace Racing Experience. Check out https://racewithrusty.com/project/iowa-speedway/

You would need to call them.