First of all I think you should just confirm a few things for me becuase I dont know lol...
I guess they use specific tyres for ovals, so no tyre is the same as the other. Racing on ovals that just seems logical with the inner and outer temps. But what about the road courses where it does not need to be so specific? Is it a control tyre - the same tyre for each road course?
For wet weather when racing on a road course would it be possible to simple design and manunfacture 3 types of wet tyre each varying in compound, so simply a hard, medium and soft. Then whatever the track demands take the correct tyre? So throughout the year just the 3 compounds then just taking the correct compound to the track? Or is that done anyway?
What would be needed for a NASCAR sprint car to run in the wet? Wipers, heated screens? (both of which should be childs play for teams to get to work properly). As for the weight, aquaplanning happens when the tyres tread and cars weight can not displace the water quicker than the water builds up. If anyone's driven a kart in the wet you will know how difficult that is!!! I can only really see the weight as a positive rather than a negative provided it is distributed correctly (unless anyone can tell me how in relation to the cars dynamics in wet weather that it isnt the case). Obviously it would be too costly racing on ovals in the wet because of the tyre situation but could it, and should it happen on road courses where the tyre demands are rather less so, and the cars are not at 200+mph for much of the time. I am not talking about the race gone, if the conditions were too bad then thats fair enough. I saw pictures of Canada last year and the conditions were such that only a boat could navigate the track without punting a wall or another car!!!
In my first post I took NASCAR as globally popular sport, as much as F1. And that isnt the case. It is nationally popular and though watched world-wide it is not massive outside the states and so the issue of TV times would not be as great as it would for F1, so in that respect I can accept cancelling races is alot more viable. I guess there is only one TV provider providing the coverage in America so if my first post seemed abit blind its because I didnt really consider that!!

"Trulli was slowing down like he wanted to have a picnic" LOL