we used to get 20 odd people in Race 3 from time to time - it was great - but it was not consistant numbers..
The sort of thing that is being suggested is almost 'organised' races.
Thats the problem, pickup racing is fine, people will wait a few minutes and or still join and do a few warm up laps - but say you had a 30 min race, people turning up after a few laps would then not want to join and race for all that time and not get points etc etc..
Make your own skins of MG racing cars - after all MG were a REAL life team in the BTCC and stuff - so you could EASILY make your own skins in whatever resolution you wanted.
Just make a NEW team, call it something similar, like MGR or |MR etc etc and make your own skins. It would be a completely NEW team that you can run.
Afterall they took a RL team and skins and made something very similar, so as long as you don't steal or rip any of their skins therer should be no reason why you can not do your own thing.