This game is the latest in the line of the Zero 4 racing series. I had the SNES version of this game and it centered around night and legal drag races.
The current game is (as far as I know - but I could be wrong) a hybrid racing RPG game. If it follows the series, you go around looking for races (or drift runs) during the night, look for legal venues that could net you money during the day and there are interim mini-games that you play that constitute your daily job.
So, in essence, it's not so much an ID rip off, but another take on the racing genre. Remember, just because you can drift in it, does not mean that it's trying to be Initial D.