No, it isn't possible to create new tracks now. But there is an alternative - autocross layouts & open configs. In combination (or just with layouts), you can create your own custom tracks. Note that open track configs are available in test patch Z30 or later.
yh but i wanted a new track for demo is because most people have demo and have not purchased s1 or s2 so i was just wondering if i could make my own track for my own server and just load it into my dedi server thats all
BTW, wouldn't it be better if demo allows lyt ? Without lyt the car park is useless.
For those rookies who don't know much about racing or sim, the ability to use lyts helps a lot in their basic training.