well i think for some manufacturers who is only good at econ cars they put a great effort to make their cheap car looks good, such as suzuki etc. But for toyota they are strong at every class so they have to make the higher class to be superior standing out of the lines, so they do this..
just like porsche, they want to make cayman just be better than boxer but won't completing their own 911, so they limited the performance of it even it could be faster, quite nasty..