Yes the R46 and R68 and R68A cars have replaced the regular R160 rotation. This is because they are priortized on the now CBTC E, F, G and R Lines, which the R46 and R68/A cars aren't compatible with. During the AM Rush Hours there is 1 R160 that runs weekdays only on the Q, and typically only does 1 trip South.

@@TheTransitProductions the R46 and R68 are not compatible with CBTC because in reality it does not have an on-board computer driver screen allowing better accessibility to all rolling stock via driving, so this means that the installation would be quite expensive because it is necessary to take into account the space where these chromatic screens would have to be installed, in addition it is necessary in particular to bring CBTC beacons integrated into the receiver so that it is compatible but it would be too expensive but not profitable, we're not going to lie, these are old trains. But the great thing is that there will soon be the R211 which can eliminate the R46s, but something tells me that the Q line will receive them, even after the full deployment of R211 from the A and C lines.

Usually around 8am-8:20am