I think most of the forum visiters now know about my new-found NASCAR obsession and maybe are a bit annoyed by it, but I think it has an element (well, a few, but this one in particular) which would be of good use in F1 as well.
AFAIK, a NASCAR weekend format (expect for the Daytona 500) is practice-qualifying-practice-practice-race. I catched a line from the commentators in one of the 2012 races that some drivers starting from the back of the pack are surging through the field due to the huge setup improvement they found during P2 and P3. It made sense. The drivers had precious little time to find a base setup for qualifying, then nailed it for the race. Some succeeded, some went in the wrong direction in P2 and P3 after having a reasonably good foundation for Q.
I think a weekend format change similar to that could have the potential to spice up F1 weekends as well. Now F1 drivers do all the preparation work before qualifying and they basically drive the race with the same setup. I am not saying we should revert to the Q-setup/race setup mode, but rather drivers should be given (1) a bit too little time to prepare for qualifying for a more varied grid, and (2) a chance to improve their setup for the race, thus changing the pecking order from qualifying to race.
One can argue that there are still differences between relative qualifying and race paces, see Red Bull and Ferrari, but I think this would magnify these slight differences. Of course, the difference between the Q- and race pace of Ferrari is not slight, it is around .6-7 seconds, but even Gary Anderson admitted in a column that it is unusual these days. Smaller differences are normal.
One huge pro for the system, I think, is that there are fewer overtakes in F1 still and thus the grid conserves positions more. Consequently, I think F1 needs the system more than NASCAR. Once again, one can say Vettel proved me wrong in Abu Dhabi, but that was unusual once again.
What do you think?