This is my first post! I just purchased a 2011 Infiniti ex35 with 57k miles. I don’t see a section for this model, so I’m hoping It’s okay that I post here. I just looked under the car yesterday and saw a lot of rust. I plan to bring it in to a shop, but trying to make the best of the situation. What are your initial thoughts on the condition of the undercarriage:

Here’s another. Really, the rust is kind of throughout.

It looks like mostly surface rust, a wire brush and a bit of paint should take care of most of it. The exhaust parts aren't stainless so they will rust. Get the missing bolt in the exhaust flange installed. All in all it looks pretty normal for an almost 10 year old car.