If fire stopped supercar makers, none would ever get built.
These days it seems that having your cars catch on fire is just part of the normal process of building a supercar. So not many people were too worried about progress being slowed down on the Acura NSX when a prototype burnt to a crisp at the Nurburgring a few months back. And it seems we were right not to worry, because some footage has now surfaced of the car back on the track at the Green Hell, looking good as new.
Unless the fire necessitated the building of another prototype, than this isn't good as new, it's just new. Either way, it's quick.