I am now testing it in the shade-c example 2 but the reflections are still not working entirely correct (only the pillar and car windows), this is what I am getting (1st pic is with sc_screen_default.settings.forward.enabled = 1; , 2nd pic is with sc_screen_default.settings.forward.enabled = 0;):

ps: it looks a bit weird since I removed the concrete floor and added a water.mdl with null action but with shade-c material as floor (below the mirrored water model).