"What does that mean for series like IMSA and iRacing Le Mans where we already have the maximum of 6 different cars racing? We are currently testing seven cars and it is looking good that we will simply add the car to these series. "
finally!
Now that they are testing , they should give 8 car a try too , i don't like having just 2 GT3 car (AMG GT3 and Audi R8 GT3) in IMSA while we (will) have 4 GTEs (Ferrari 488GTE , ford GT 2017 , Porsche 911RSR and Bmw M8 GTE) in it.
As I recall from some years back before i pulled the plug to this car rental agency the car restriction was still hard coded from NR2003(= 4 different cars + safety car).From a technical perspective, the main thing holding them back is the user base and the amount of RAM they have on their PC's. For reasons beyond my comprehension, a lot of folks in iRacing seem to have pretty old systems and complain when they need to update.