It's not with me, but I know many of you should be interested.
SRO are running a 6 round season with this mod starting on Thursday the 1st Oct.
Info and signing on can be found at the end of this link:
https://simracingonline.co.uk/racing/seriesinfo/207It's split into 2 classes and features possibly some of the best cars available in AC (Seriously they are that good to hurl around).
It's not a free mod, but the league has a discount code available to racers taking part in the championship - it works out at roughly 9 Euros for the car pack.
If you are unfamiliar with the cars/mod then look
HERE and try out the free car sample - give it a good 2 or 3 laps for the tires and brakes to heat up if you don't use tire warmers.