I would like to search for Maps based on Skill level, why is this not possible? Can It Be Implemented?

the site isn't finished coding yet, I'm sure this will be implemented later

You can kind of do this right now.

Select "Difficulty (Easiest)" or "Difficulty (Hardest)" from the Primary Order dropdown list. It's not ideal for finding tracks with intermediate difficulty, but you can quickly find the hardest and easiest this way.

I would like to add my own wish here; When I search for track to race, I would like to exclude track that I have raced already... Coz, after racing so many tracks, its hard for me to remember all the trackname I have raced already, so I ending up clicking the trackname just to see I have raced that track already, again and again and again.... So it would be nice to have this feature implemented in the future; Search for track not yet raced......

Well, the only way we know if you've raced it is if you've uploaded a replay.

I guess a filter could be put in place to show which tracks you have not uploaded replays on.

or a filter for tracks you have not yet downloaded. I remember back at tmx (wow, that seems a long time ago) there was a feature where you could see all the tracks that you had downloaded, I would think that it would be relatively easy to reverse this...

Maybe it's not true of many other people, but I don't try every track I download.
So, for me, that wouldn't be the most accurate way to see which maps I've driven.

It would be a nice filter to have though.

The "My downloads" function works only for the track itself, not for downloading replays, which I mostly do...... Only if there is no replay submitted yet, I download the track itself....