[Tcoat]

It became a “branded” title the minute it was paid for by insurance. The claim was likely not for the damage so much as it took a while to find and they paid out. This is supported by the info that it was sold at auction. It would be classed as a recovered vehicle not a rebuild.
As far as the warranty goes you just need to balance the probability of a costly repair against the reduced price. As we have seen the likelihood of an expensive Warranty claim on a post 13 is remote so I personally would not even worry much about that. There is also the option of paying for an extended warranty but you would need to speak to the dealer about that.

I myself would consider such a car if looking for the best value for the dollar I could find.