Evans, sometimes it's hard to be creative and unique. All the unique and outstanding works you are talking about have been done from beginin till the end by the same person. Which includes deciding where to take the picture, what car, how many cars, what skin to use to match the desired theme, what angle to use etc. That's when you get the unique result you are referring to.
However this thread is somewhat different. Here you are given a picture that you have to work with it. Sometimes you can't turn an old piece of rusty metal into gold. No matter how good you are as an artist, how creative you are, or how well you know PS.
Another thing is that we're trying to make a picture look nicer, while keeping it realistic. Sure, you could put an UFO in the background and go nuts with all kind of stuff, but that's not what most of us like here.
I agree that there should be more creativity. However if you look at the edits, you'll see quite some difference between them. And I mean look, not just have a glance, and go "ohhh blur again", this is the same as the rest. E.g. the edit I made may look pretty much the same, but in order to make something else, I decided to go for a sunset-ish, orange theme. Don's picture is distorted and tilted, while boxer's edit has rain, etc etc etc.
As cliche as this may seem, it does involve effort and some skills. You may deduct some points for the edits being "cliche", however you can't deny the fact that there is work involved in this, good work!
If you want more unique stuff, visit the Edits thread, there you'll find more diversity. However you can't expect to see magic here, since the base for all the works here is exactly the same.
I agree that you still can make edits that stand out, and are more unique than others, however if you bash other people's edits, rather than giving constructive criticism, you should show us "how it's done".