Which wheels from other GM models will fit the HHR?
#43
Yes you can run different wheel sizes. I went from 16" to 18" using Cobalt SS wheels along with a 245/40 tire.
#47
Go old school, now mark a chalk line around the circumference of TTR larger tire!
Measure twice , snip once. Or something like that!
You can get a taller tire back there! But can’t go lower than Lunchbox!!