I am not reading much about contingencies for the lack of a spare with our GLA 250. I have no confidence in patch kits or slime. The reality of a flat with MB dealers closed is imaginable. I am waiting for a price of a run flat tire and wheel to carry in the cargo space. It's peace of mind for my wife driving alone in remote sections of Western PA. I have had possibly a half dozen flats in a lifetime of driving, primarily roofing nails and drywall screws. At this point in life of buying a MB, I want a solution to a flat tire and lack of dealer access. Any thoughts?