GT6 willow springs - no invisible walls!

[Mini Stiggy]

https://www.gtplanet.net/kazunori-yamauchi-tamir-moscovici-interview-jff-2013/
And there is the prof of the course maker size.

 

[Jarnac]

Or 5x5, if the 'development staff' decide to say so.

 

[Streeto]

Brilliant.

 

[Johnnypenso]

I imagine with the new 100km by 100km area to make a course with the new editor will have allowed them to make the entire track free, even surrounding areas. I would like to think at least. Here's to hoping the Top Gear Test Track is going to be completely open

Top Gear Test track will not be in GT6. And the course maker is most likely 25km by 25km.

Actually it was 20x20 but who's counting And I do believe that's not a hard 20x20 sort of a maybe 20x20. Still it's 400 sq. km, an incredibly huge number.