360 F1 engine stall with transmission light

This afternoon my wife was on her way home and spotted a gentleman attempting to get his 360 spyder to the side of the road. She found me at the gym and I went down to see if I could be of some assistance. He stated that while he was driving his transmission light came on then the car shut down and he was able to start it but the engine would shut down again after a few seconds. He had a flatbed in route to take it back to the dealer for diganosis.

Any ideas what may have caused this?

In addition, he was not familiar with Ferrarichat so I had to inform him about the site. I am sure we will have a new nice member in the next few days.