Dodge Stratus RT 4 Dr Sedan 2.4 Turbo Tyres

These Michelins came installed from factory. After improving the suspension of the car with 4 Eibach Sport springs and 4 Bilstein shocks, I decided to give them a try. They have lasted way TOO much, since they still have about 50% thread depth, which confirms that the threadwear rating is false ("280"), with the compound actually being much harder than a "280" would suggest, but after 9 years the rubber is very dry and full of cracks. Grip in dry and wet has been only average, not even "good". Handling is so-so, nothing special. Sidewall capacity for receiving pothole blows is lower than other tyres. Since my car weights 1450 Kg and 63% is on the front wheels, a 205 tyre is very limiting, specially for a 215 BHP turbo car. Overall, the only thing I appreciate of this tyres, is their longevity, but anything else is just mediocre to average. When compared to my older dodge Spirit R/T with Dunlop sport SP-8000, these Michelins are completely inferior to them.
I'm changing them probably to Toyo's T1S or T1R; or maybe the old standard for dry grip here: the very appreciated Goodrich TA KDW, but those are scarce and expensive here (Mexico). My conclusion is that there must be a reason (commercial one) for chrysler selecting these tyres for all these cars; but for its price these tyres are not worth it, unless the only thing you want is that they last and last. Amclaussen, Mexico City.