It looks like Canon had a few of these 50D cameras to a few photogs covering a rally race in the US. Specifically if you look at this (full size image):

Image

The EXIF shows the date which coincides with the New England Forest event.

If you go to the pre-order page for the 50D here at Henry's in Toronto, you'll notice a sequence of shots of another different rally car, maybe from the same race or at a different one, thus a few were out in the field a few months ago being evaluated.

Anyways check out the first link to the photo. According to the EXIF, the camera was set to ISO 1600 and looks fairly clean (using the 600 F4L).

Mike