I have seen them race and they can be capable at the club level if your skills are up to it. Are they a full blown race level vehicle, no, but that doesn't mean you can succeed with it. Don't let anyone tell you that you must have a T4 or a MF2 to race. Those opinions are the ones that help drive people away from the hobby.
If the vehicle does what you need it to do, be happy with it.
If I was you, start with a full teardown of the vehicle and see what is worn on it and replace. If it looks like there will be too much cost wise to replace, use it as a spare parts car and buy another new one. New ones get that nice warranty on them.
From what I have heard, the graphite car feels more direct.
< Team Associated RC10B6D>
< Durango DESC410V2, DEX410V5>