It's great being able to place more objects in the track editor but imagine if we could also start on a complete blank map and add different chunks of road and elevation change to build the layout that we want. There could be some presets for the ground like grass, sand, dirt, water and some presets for the "background box" and then you just keep adding chunks of road the way you want around the environment just like you place a slab or a ramp in the current editor. Whether it's a highway to simulate a Outrun-like cruising at full speed, a touge on a steep mountain side or an intense rally track, it would spawn a huge number of new tracks of all kind and for all taste.
Two big downsides of modding are the ever-mismatches and the ripping of contents from other games. This in-game track editor (or in a separate executable like LFS viewer who knows) would upload the track data straight to a newcomer who join a server in a few seconds like we do for the car skins so there would never be a mismatch. Creating the track within the editor also prevent the use of stolen copyrighted materials from other games.
I know the developers got way more important priorities but I just though that eventually it would be great to create stuffs inside Live for Speed and it would spread countless videos with original stuffs that would attract new players as well.