There is no way I would want to have to put up with the inevitable picky nob who has nothing better to do with their time than drive around a RL track in LFS, find faults and report them on the forum, then whinge that there is no way you should be able to cut the chicaine at T3 as much as you can, and claim that LFS's physics is crap because the lap record in an RB4 is 0.7 seconds faster than the real life lap record in a Celica GT set in 1995.
That would happen too. Some people in here are like that.
The Devs would be crazy to put real life tracks in to LFS for this reason alone.
I on the other hand think it would be great if they created fantasy tracks inspired by RL ones.