I've just had the same exact issue. 2013 P85, subframe cracked all at a sudden and i'm out of warranty. Quoted $3447.95. After reviewing this forum and seeing how common this issue specially for a car that with dwarf production back in 2013, I requested to have this repaired at goodwell. Moreover Toyota Tundra had a similar issue back in 2006 and they extended the frame warranty for 15 years regardless of mileage and were forced to issue a recall.
Service center denied my request.
Just opened a complaint with NHTSA as loose Drive Units are not a simple defect
View attachment 676737sla service