Some time prior to one of the major build 1.2 the leaderboard was scheduled to be reset, this has not happened. Minor maybe but it was meant to happen.
Yeah i think they are still adjusting quite a bit of physics on some cars, maybe thats the reason they wait to reset it, to prevent from having to reset multiple times
Maybe you are right. Maybe. But I have to admit that my own conclusion is that Reiza (maybe) dont really care about the TT LB mode. Why I have come to this critical conclusion can among other things be seen here. Because the way Reiza have created/implemented the TT mode in AMS2 is rather unfocussed or sloppy if you ask me. Official Time Trial Report Topic
Considering they actual wrote in their notes that the leaderboards would be reset back in March when the major build (ie 1.2) came out it has been a long time and resetting the leaderboards should be fairly straightforward as it is only a set of lookup tables
I think this is what the OP was alluding to - almost two months ago it was suggested the boards would be reset - but it has not happened yet.
When wil the Leaderbords get a reset? in Thunder, Lightning, or in the Wet. When the Hurley-burley's done, when the Battle's lost and won, that will be e'er set of Sun, where the place? top of the notch there we go to meet McClutch There we'll perform our magic rites, and raise such artificial Sprights as by the strength of their illusion shall draw him on to his confusion we'll double, double, toil and trouble, and make our hell broth boil and bubble!