First off, altspace, killer PS job! I would like to see the original! Did you take the photo from another moving vehicle or do you have access to one of those pole frames that you can attach to the car and then put the camera on the end? I REALLY want one of those!
Now about "Does Photoshoping a photo still make it Photography?"
Yes and no. It all depends what kind of photography you want to classify the photo as. If you want to consider a photo "photojournalism" then pretty much ANY photoshoping outside of brightness/contrast, levels, dodging, and burning is NOT ok. Some croping is ok but only as long as it does not "change" the meaning/emotion of the photo. Photojournalists have lost jobs in the past for Photoshoping photos.
For most any other type of photography, photoshoping is A-OK but usually if you do so much photoshoping to a photo that it is drasticly different from the original it is considered an Illustration and you want to let people know it is when viewing it. Some styles of photography that photoshoping is accepted would be fashion, comercial, fine art, automotive (non-journalistic style), portrature.
Trying to pass off a heavily photoshoped photo as an "unedited photograph" and then being caught is one of the quickest ways to have your reputation as a photographer screwed up in the professional world.
