some drag cars and economy cars have a similarity both trying to achive low drag coefficient well some drag cars do generate little bit of downforce for some stability in higher speeds and tend to have have little higher cd due to more cooling (intercooler,and more) but there is also advantage its there weight, they tend to weigh less than OEM look at some examples of civics and lancers.
its a bumper
rear wing
from mitsubishi
and this
they do look great
but there is a disavantage if you use one with intercooler or velocity stack people will try to drag race you
