Why can't the Pro cars ?

[Bernie Cunningham]

Originally Posted by Kevin Panzino

I too have heard the clutch plates and disks often get fused together. But that being said I have not seen the engine rotating as they push the car off?? Does that reverser also have a neutral?

I could be wrong but I believe there is a splined slider sleeve that easily disconnects the drivetrain from the motor, that's how they tow 'em back to the pits as well.
It makes sense that while on the track they must wait for the Safety Saferie to uncouple a locked up situation. Confirmation would be appreciated.