He's talking about Race.
And there aren't 100+ players on Race...
Though it's a stupid thing that your judging it on it's aspect, so what if it looks like HL2?
Performance is the most important and not the aspect, the MTA Race client was just a test for the new core, so it couldn't do anything special, look at what 1.0 can do..
If I understood you well you need to do all this with the Map editor, currently only the Race map editor supports race checkpoints, the 1.0 map editor shall include the Race EDF in the final release.