I wonder why the other German marques (Audi, Mercedes) don’t come with run-flats? Aren’t they meant for high speed on the German Autobahn?
I’m my opinion, the cost to benefit of run flats aren’t worth it. Especially since you can only drive up to 50 mph and up to 12-15 miles on the flat. So you definitely won’t be going Autobahn speed once the TPMS notifies you of a flat tire. They’re heavier than standard tires, noisier, they seriously take away from comfort, ride, and handling of the vehicle, and once punctured typically cannot be repaired. Not to mention the expense.
Plus, we have TPMS….
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