Thank you @StupidHead
That is a great, (albeit disappointing) response.
Will replace the ball cups and get it moving again, I have no experience racing but the track I've found runs 'Open' sessions 2x a month - so I will get it down there, give it a run and see how I go. If I decide I like it all enough to get into racing I'll get myself something new. (Not sure I have the cash to get into this shit seriously, cars / parts / lipos / motors you knowthe deal).
Regarding a newer car, (I will obvs ask at the track too but just collecting as much info as I can) - getting a 22 would be acceptable rather than getting a 2.0 or 3.0 etc? These things are bloody expensive lol.
Thanks again.