It was a terrific race.
The Rolex GrandAM rules made a big difference. At Le Mans, when there is a full course caution, they split the entire field in half and separate the two packs by half the track whenever there is a full course caution, which destroys competition.
At Daytona, when there is a full course caution they take all of the DP cars and put them nose to tail and all of the GT cars and puts them nose to tail about 20 car lengths behind the DP train. Then they drop the green flag and hell breaks loose -- -- it's a new race. (Mitch: Straighten me out if I got any of that slightly wrong.)
Well since you asked....the ACO runs 2 safety cars at Le Mans because the track is ~13km long, not just under 6km like Daytona. Shorter track = no need for a second safety car. The idea is that by having 2 safety cars there are less cars going fast trying to catch up to the safety car train under yellow flag periods and that's why it's done.
That said, Code 60 should replace the safety car imo.
As for the Grand-Am safety car periods, there's no distance split that I know of between the DPs and GTs, they just wave around the DPs to have each class separate (so as not to affect the in class battles) with DPs behind the safety car and the GTs behind them.
I did watch the race, all 24 hours of it, and besides the fog rolling in I enjoyed it greatly and that finish was absolutely amazing, I was hoping the #10 Corvette DP would try run on fumes to the end and was kinda sad when it came in to pit...great work however by the #01 crew to keep that car fighting for the win.
GT, oh god that was exciting, just a shame the Audi's couldn't get a 1-2-3 finish. No-one would have bet on a finish like that after their performance at last years' Daytona 24...
48 hours of endurance racing watched so far, bring on Bathurst!