one more tire and wheel question

[chicagojeff]

So many thanks to everyone for all the advice so far. So many sports cars before, but the Elan is really something. I've been so busy driving it that now I need to pause and fix a couple of minor things before I cause some real trouble. Anyway, tires are next. Seems that consensus is the Bridgestone Potenza RE92. Here's the question: for regular road use, and with original knock offs, is there any real concern of a blowout turning into a rollover? Alternatively, have people added safety beads to their old wheels?
It's a little hard to tell, but I don't think mine have the safety beads. I wouldnt track without them, but wondering about the street...
thanks,
Jeff