I made this layout for large grid rallycross racing, it works very well with all the road cars, setups are quite easy to make too. All you need to do is use a Westhill setup and change to knobbly tyres and maybe soften the suspension a bit. I called it Green Hill because most of it is on grass. The one really tricky corner is the one at the chicane, you need to treat it more like a hairpin, it's not one that you can straight line from a wide entry, especially with knobbly tyres.