Here's another article about it (confirms your potential top speed +)... :
Purdue confirmed the tragic multi-vehicle accident in an online statement.
nypost.com
Makes me wonder A) why they felt they needed a top speed of 75; and B) who the idiot was who certified it to be able to be driven on State Roads...
That's a replica, toy, train... It never should have been able to have been driven more than 5 mph more than the top speed it would be asked to go in a parade...
If it needs to travel they should roll it on a trailer and ship it where it needs to go...
No one blows a tire these days... To let a tire reach that condition is outrageous...