Who is DaSilva?
 

I missed the start of Sebring, and started listening to the race on audio broadcast about an hour and a half in. The commentators alluded to a "controversial" driver, about whom they felt the less said the better. He appears to be Luchiano DaSilva, in the number 31 911 GT3.

Anybody know who he is and what is the controversy?

And no, I don't think it's the ghost of Senna!