We have 64K miles on our Aura.
It has been in the shop a few times but GM is honoring the warranty.
You just have to find the right shop.
We were getting 27MPG until we put on new tires, now we are only getting 23.
Try to replace the tires with the "low rolling resistance" models.
Comfort on long trips.
It rides smooth and is not hard on the old body.
Our 4 speed has trouble finding the proper gear when cruising at 40MPH.