Regarding the early SE lip spoiler...
IMHO, this piece is vital, as it extends the roofline a couple of inches when viewed in profile, and raises it up a bit, too, without even looking much like a spoiler. It is very subtle. Without it, I think the back appears to droop a bit.
From the rear, it's been said that the car appears to frown. With the spoiler, it looks more like a scowl, to me, which is also an improvement.
