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.
NPR had a report recently on a "world series" of boxing with teams representing countries (npr.org). I can't say I find it appealing, but it's intriguing. It reminded me of Team Tennis (wtt.com), which works on the same notion.