You can join the group for free, so that means the group access cars are free too.

Its a tough debate what or why isnt it free or not free, in the offical discord server its free cuz there its much more of a competitive scene. On the other hand on speedrun its not free (cuz its a seperate category) but its generally for enjoyment and making more unique choices in car choice. And the last part that here theres not even every single car listed, or the old cars that arent even in the game anymore, they are just listed as gamepass+, which although saves time it probably matches this websites choice of categorized cars.

IMO yes i think whoever is in charge should merge the two categories.