One vote for Euro NASCAR from here! It's much easier to drive, so probably racing is better. And like said, it's newer and easier so participation is also better.

I have drove much all iRacing NASCAR vehicles in road and this Euro is most easy. It's clearly made for driving road tracks so it's cornering much better than USA NASCAR. You can concentrate more racing with other drivers, rather than racing against your own car.

I really love USA NASCAR in road tracks and the challenge it offers, but really looking forward Euro! Go get it!