It's a standing mile event that has been going on down here in South Florida. I believe the deal is that they are allowing "some" convertibles to run the mile event.
This is the event, under a different group though, that had the record breaking run by the TT-FGT (1600rwhp) 253mph.
The timing system is has been upgraded and working well. Fun event even if you don't run.... 5 bucks to watch!