After 3 weeks of work I just released my first custom level for AC, LakeSide. This is a made from scratch fantasy level (not ported). It's an 8 km long loop with a good mix of high speed stretchs interspersed with twists, turns and lots of elevation changes. It has 12 slots (reccommend 5 to 6 max) with working AI and TV replay cameras. It's online ready !
Not the best quality video, apologies!
Ingame Pics (outdated now):
LakeSide (scratch made/fantasy level) v0.9
An 8km loop around some lakeside cliffs! (30 Mb download)