Comment by mehrdadn

I don't think that's a good analogy at all. A car's precise width is not part of its interface nor a part of its design anyone particularly cares about. Its interface is more like, the design of the UX... how the steering wheel, dashboard, etc. look and feel. If a company copied those but changed everything underneath so that people could buy a cheaper alternative without seeing a difference on their usage... I don't know, is that actually legal?