That spot is where the airport is in free roam (actually beyond where you can drive since it's on the far side of the terminal). The drag strips and URL race tracks are probably done similar to the canyons and drift tracks in Carbon, separate maps and not attached or located in the main map. You can glitch to get out the airport url and drive on the runways with the planes, but it's not possible to know if that is located at the airport you see on the free roam map, or just a duplicate that looks the same but is actually located far away (like the canyons actual locations in Carbon). Video of the airport url glitch, note you do not press reset, just steer left into the wall and the game teleports your car past the wall.
Noob question can this be done on all platforms?