Chances are, if you are in the states then all cars after 96 have obd2. If you are in europe then it was 2001.
I have the elm interface and it is OK for its price. It only reads about 1-2 pieces of information per second. I don't know about the brX.
I know Frodo is/was working on a skinnable OBD tool, but I don't know when it will be available. It is designed around the Elm and the BR-3