We’ve had the car for about 3 months already and it’s been a blast. But today of all the sudden in the afternoon on my drive back home, the driver rear wheel started squealing/squeaking really loud. Whether it was accelerating or slowing down it would squeak, at higher speed it was a higher pitch and at lower speed it sounded like it was grating something. It was pretty horrible considering that we shut the Ac and the radio down and it sound like something was scraping the back wheel but we couldn’t see anything from the outside, so I don’t know if it has anything to do with the Regenerating end of it. Finally got on the freeway and was still hearing it and then suddenly it was gone as mysteriously as it appeared. Made an appt for the SC next Tuesday already so hopefully they can figure out what made it squeal.