They have lots of good one missing, hope they bring them back through DLC. Midfield, Seattle, Twin RIng Motegi, Infineon, El Capitan, Apricot Hill, Grand Valley, New York, Opera Paris, Hong Kong, Seoul, Test Course, Las Vegas Drag Strip, and Gymkhana.
My all time favorite is Nurburgring and Circuit De La Sarthe.
New favorite is Monza.
Original track is Deep Forrest.