Is it just the angle, or does this Sunset Red S in the attached link at the factory have a different rear spoiler? http://www.bbcicecream.com/2012/10/26/spacex-and-tesla-visit/
You have a good point. It does look like there's a lip on the trunk. Perhaps a body-colored spoiler rather than a CF one.
Yeah, I don't think there's a spoiler there - the trunk lid has a bit of a flair already and there's just a reflection on it.