Dirk remind me next time I'm in ATL and I will bring you a tire goody bag with an air gauge and a tread depth gauge so you can give ol George a break...
As for the wear, you are fine. Most of those Maximas blasting past you at three digit speeds on I-85 are rolling on homemade racing slicks at this point
As for the crappy OEM performance, it unfortunately has been set in stone by the car manufacturers at this point. Some brands like Porsche and the likes still require a quality tire, but most simply take the lowest bidder that can meet a certain set of criteria. And the criteria for a Mirage will be the lowest of the low, because outside of ultra low rolling resistance, there really are no necessary requirements.... a wheelbarrow tire could damn near meet the load requirements, and handling is a non factor...
Just be glad you aren't a Tesla owner who is finding out that their tires are averaging about 10k miles a set at close to $1500 for the set... oof. The Mirage wins again!
Resident Tire Engineer
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View my fuel log 2014 Mirage ES 1.2 manual: 44.4 mpg (US) ... 18.9 km/L ... 5.3 L/100 km ... 53.3 mpg (Imp)