Those steam traction engines are pretty cool. My grandfather operated a Port Huron engine as a young man in Kentucky. If you every get a chance to attend a "steam show", it is well worth the trip. Lots of really interesting historical old iron.
Speaking of torque, the Case company had a demonstration called the Case Incline. Since steam engines have max torque starting from zero rpm, they are really responsive to throttle.
https://www.youtube.com/watch?v=5Vl6zzIwVKU