Ok, well here goes nothing! Keep in mind here that all these tracks have been in some form proven to be in the game thusfar (check the Turn 10 forum for that proof). Also, chances are I will have messed something up, so someone please correct me if you see anything wrong, because chances are it is wrong! If anyone can format this into a table, that would be greatly appreciated, because I tried and had no luck with getting a big table to work. Some of this info, we may not be able to figure out until the game comes out, especially when it comes down to lengths of fictional tracks and multiple layouts on the same course.
Course Country Region Length Real?
Amalfi Coast Italy Europe Unknown No
Circuit de Catalunya Spain Europe 2.875 miles Yes
Laguna Seca United States North America 2.238 miles Yes
Le Mans France Europe 8.469 miles Yes
Maple Valley Unknown Unknown Unknown No
Montserrat Spain Europe Unknown No
Motegi Japan Asia speedway- 1.549 miles Yes
road course- 3.0 miles Yes
Mugello Italy Europe 3.259 miles Yes
New York United States North America Unknown No
Nurburgring Germany Europe 12.3 miles Yes
Sebring United States North America 1.7 miles Yes
Sedona United States North America road course - 4.13 miles No
circuit - 2.02 miles
oval - 1.51 miles
Silverstone Great Britain Europe 2.249 miles Yes
Suzuka Japan Asia 3.608 miles Yes
Tsukuba Japan Asia 1.287 miles Yes
Though not confirmed, I'd guess that Maple Valley will probably be in Canada or the United States.
Countries with the most circuits: United States (4, 27%); Japan (3, 15%)
Region breakdown: Europe (7, 47%); North America (4, 27%); Asia (3, 21%)
Course length: < 2.5 miles (7); 2.5-5.0 miles (5); 5.0+ miles (2)
Real Tracks: 10, 66% Fictional Tracks: 5, 33%
The percentages will be more relevant as soon as more tracks are revealed and more info on the current tracks is discovered. I used just the courses and not the layouts for everything except the length, which is really the only category it makes a difference in. Anyway, I hope someone other than me thinks this is pretty neat to look at, and again, let me know of any mistakes or of any new tracks that are released...I will keep an eye out as well and try to keep this updated!