Some links to a blog which is showing some images of trains shot with the HS-20 EXR.
In the first link, the only HS-20 EXR image is the middle one. Click here
In the second link, both images are from the HS-20 EXR and both are shot at ISO 1600. Click here
Other pages are here and here
Clicking the magnifier, at bottom right, will show the larger sizes. They are not full size images though, however all Exif data is intact.