Hey TMX,
here's my first TM² track I built two days ago (the day I got the game after coming home from holiday).
It is a very simple track, something like a test drive track with a single road, no jumps (exept one passage where the car begins to fly), no loops, but some scenery and an outro as well.
It's a lap track and you have to drive one lap, but you could play it online in the "laps" mode.
Some facts:
Start of work: August 25th, 2011
Mood: sunset
Length: ~1m25s, ~5.7km
MediaTracker: outro
I don't expect this one to get really popular but I will probably do some jumpier tracks soon.
Have fun anyway !