So I'm not the only masochist in Georgia who has both BMWs and a Porsche?
You are absolutely right about replacing BMW plastic cooling systems at 100K miles. I do the same thing. Learned that one the hard way!
I did some quick shopping and it looks like a new radiator is about $250. Ouch! But I knew going in that Porsche is proud of their parts. I'm going to pull the bumper off this weekend and see what's what. Until I get in there, I won't really know what I'm dealing with.
Bobiam: The plastic panel under that corner is damaged and there is a piece of it hanging down. So it's likely to have been introduced to a curb by the previous owner.