I use vapour blasting for many parts. Here are a few examples I did a few days ago
In your car's build thread you posted another picture with a bunch of different parts
That picture is interesting in that all of the parts (aluminum and steel) appear to have the same tone and look. If that is how aluminum parts come out I guess I won't try it for the pieces I was considering. Might be the glass bends since we have plenty of experience of what blasting with those does to the bare finish of aluminum. Just me but thanks for sharing.
Does look like it does a nice job for steel though it appears that if they are going to remain bare steel the finish is going to need some work to return it to fresh steel look rather than freshly cleaned
look. But of course it could be the lighting, camera and angle playing part in what I'm seeing on my screeen