Good move by NASCAR here, exchange info, research and then hopefully start an all road coarse racing league. It was cool a couple of weeks ago watching the NASCAR NationWide Series when they raced in the rain with those windshield wipers and treaded tires. This is a good move by NASCAR.
The problem with trying to call a final matchup at this juncture is that you have no idea how the draws will go. The best you can guarantee really is that Barcelona and Madrid will face off, and the winner will win the competition.