I agree with James H. Many of todays smaller cars seem to be prone to warped rotors because of their smaller mass. I never go to a tire shop without expressing that the lugnuts are put on and torqued by hand.
Many tire shops employ unseasoned kids that just don't pay attention or have little or no experience. For the lugnut torque issue alone, I remove my own rims and let them replace the tires and balance, and only because of the lack of equipment. I then bring them home and put them on myself.
