As for the AAR chin front spoliers being switched side-to-side, I'll ask him if that's actually true. If it is, it may be only for ground clearance. Actually, IMO, they can be an extension towards clipping pylons on an autocross course (fractions of inches are important here just like fractions of seconds).... but, they do tend to keep the image of the car accordingly. (I'm planning to install a full-width front spoiler soon, and that will add some extension towards pylons, but, I'm also doing more recent hi-speed track lapping sessions whereas the full-width front spoiler could possibly do some good for me).