cheap-ebay-made-in-china rims could mess up the car if they fall apart

 

Rims like any other mod....If not done right can cause you issues.

Aftermarket rims done right will in no way damage your HHR or any other car/truck. I would find out if he knows first hand that aftermarket rims damaged something he drove......
Then avoid whatever shop he uses for rims and tires.....