XRAY - Model racing cars

Im working a deal to build a track in a space approx 150 x 150. Anyone interested in sending me some design ideas? I would like to build a world class track. fast and technical. im soliciting a few investors right now and would like something to show them.

any help would be appreciated.

I, too, am building a private track for myself and a few friends. I, too, am in need of some suggestions on layout, size, and technical dimensions regarding spacing of jumps. I am not, at this time, limited to the size of my track. However, being a private track there won't be marshalls on hand to be constantly keeping my XT8 on it's wheels.