Just took delivery on Z - Questions

[JGreenwood07]

I picked up the Z on Saturday after a 3 month wait. Super excited and I love the car. There are a couple of questions I have though, mostly concerning the condition of the car upon delivery.

I opted to detail the car myself, rather than have the dealer do it. The biggest thing I noticed is the amount of "rail dust/fallout" on the car. There are small black/red specs all over the car. Not really noticeable until you get up close, but they are there. I had them on my last car, but not nearly this bad. I did some like clay work on it but it wasn't too successful. The car also has some waterspotting.

My biggest concern has to do with the exhaust though. If I get under the car the exhaust look rusted right where they meet the piping running the length of the car. The bolts are caked in red. Is this just rail dust also? I only notice it on the exhaust and not anywhere else.

Other than those couple of things the car looks great.

Thanks for any advice.

EDIT: Will be going by dealer tonight to address concerns and will update post as soon as I get some more info.