If you have access to it, I would highly recommend viewing the documentary made about Billy and his rehabilitation up to the point that he gets his F3 seat. I think it was a BBC production. It is absolutely awe inspiring. The kid is a legend and just so incredibly level headed.
Billy M was on the Abu Dhabi pre-race show grid walk; he seems to have the respect of all, including Danny Ric, Alain Prost, etc. A genuinely nice young man.
Zinardi looks to race in the Daytona 24hr with the BMW team in the M8 GTE. A little late but nevertheless.