Not sure I understand "run flat".
Drove home about a mile from the Depot on smooth roads and went immediately into a hard flat with bells and warnings on the dashboard. Got home to really FLAT, dead tire. 2013 335 M Sport.
BMW phone assist wanted to tow me to the dealer at 9 PM (currently closed) but said they might charge me for service after the fact so I declined (1100 miles and 6-7 weeks on the car).
I would prefer to avoid dealing with BMW directly because I basically don't trust the brand or their dealerships for anything other than initial core performance.
Any thoughts on how get better tires without spending stupid money?