I have a year old i3 and both my tires on the left side developed bubbles. the dealer says its because I ran over some pothole or uneven surface. I live in the Bay Area and use this car to pick my 6 yr old daughter from school and drop her. the roads are near perfect I don't take the car off road or on any bad road. 1. I think the tires are weak to a level dangerous and can leave you stranded anytime. 2. if just some uneven surface can bust both tires for a year old car with a few thousand miles, something needs to be done or the car should be deemed dangerous to drive.
I did write to the company but they directed me to Bridgestone who is their vendor. Its like saying if the airbags are faulty, I should start talking to the airbag manufacturer. I find it funny. FYI, I have driven a car of this make forever, this is not my my first from BMW and also have multiple cars. Never heard of two tires going bust in one year over good roads.