Inside tire wear is primarily caused by negative camber. Every car has a small amount of negative camber. The air suspension however increases negative camber as the MS lowers itself. (ie the wheel angle leans towards the body at the top) If you do not have air suspension then if the alignment is right, you shouldn't have excessive inside tire wear.
If you have directional tires, they can not be swapped from left to right. With non-directional tires you can do this to get more miles from your tires.
Also cars get knocked out of alignment if you hit chuck holes at high speed. So alignment does play a role in excessive tire wear.
Then there is the UTG tire rating which gives you some idea of projected tire wear, ie 160-400 - the lower number being a softer rubber and wearing out faster than a higher rated tire.
Since the MS is heavy with great torque, it is not surprising then that tires are wearing out at 7K miles.
An AWD MS would help the tire wear issue since 4 tires gripping the road provides more tractiion and less slip. So I hope there will be an AWD MS. I understand there has been testing done on AWD MS.
Jerry
If you have directional tires, they can not be swapped from left to right. With non-directional tires you can do this to get more miles from your tires.
Also cars get knocked out of alignment if you hit chuck holes at high speed. So alignment does play a role in excessive tire wear.
Then there is the UTG tire rating which gives you some idea of projected tire wear, ie 160-400 - the lower number being a softer rubber and wearing out faster than a higher rated tire.
Since the MS is heavy with great torque, it is not surprising then that tires are wearing out at 7K miles.
An AWD MS would help the tire wear issue since 4 tires gripping the road provides more tractiion and less slip. So I hope there will be an AWD MS. I understand there has been testing done on AWD MS.
Jerry