Hi. next spring i will need new tires for the back, Read that the Michelin all seson non run flat is rated for 70,000 kms. Wondering if anybody is or has used them . Will they be patchable , will the ride be smoother or rougher or should I stay and get michelin A/S run flats instead?

The Michelins ( on a 'Vette) will last a long long time... Every Vette will but down the tires if you want ... I was teasing