I don't think the "knight rider" KITT car has something to do with being "sleeker/more aerodynamic" it is a TV Series, so it has to be 100% about the way it's looks... If it would be a real car - the roles would be different...

Take a good look to the old KITT - it was a special car, different than others, with a secret... and now to the new one - Ford Mustand - it is a nice car, but that’s it... why they couldn’t go for the same definition? Some thing different, something special, something on what to look at when it will...