There are plenty features on our cars today that started out as demonstrative tech on concept cars or optional features at best.
Of course, new tech is still invented, and the same course will be applied to them, with the transition from optional to mandatory taking some time.
A feature with good chances to become mandatory in years to come is the various pedestrian protection systems, and most big car makers are developing one, BMW included. And while scattered reports and public displays are all fine, there is nothing quite like a third party tester for some real feedback.
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