[Christ]

So you're saying that those holes produce negative lift?

I'm relatively sure they don't produce anything, actually, rather negating positive lift that would normally be occurring due to the parachute effect. The notion still stands that the parachute effect wouldn't be a problem if the offending area were covered by body work, hence the obvious advantage of a rear belly pan, or the option to just cut the offending section of the rear bumper, rather than add the ineptly named "speed holes" to it.

If that wasn't your complaint, I'm not sure where the relevance was.