Phone design converged to rectangular slabs because providing a somewhat uniform form factor (screen aspact ratio and feature standards) allows easier development of 3rd party apps. If vehicle manufactures start encouraging 3rd party plugins (which is unlikely) then they may also converge to a standard set of design and feature sets in certain sections. In any case this is certainly a good thing for consumers since standardization brings down costs, and the ones most hurt are likely manufactures (since it turns cars into commodities) and designers (for obvious reasons).
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No.
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