Yep, dawesdust_12 is right. So please keep these links off the official lfsforums. VOB mods are just not supported around here.
Anyways, like I stated before, it is also possible to add it to the current section of layout objects. This new version should be done tonight (Thanks Frito!), and will no longer be using a dummy car. Instead, the new 'track' will be added to the layout. This will be better for a lot of 'noobs' because you no longer need to use a dummy car, you can just hop in a modified server which runs the layout or go in singleplayer, load the layout and play.
Also, the 240 meters range limit will now be gone, so tracks can be made over the whole autocross area.
It's one step further in both ways. There is also a small posibility to add collision, but it's pretty unecessary because the material id's have not yet been discusssed. You wouldn't want to drive on a slippery/fake road, so collision is a no-go for now.