Talk:50 Years of 911/@comment-27048832-20151017220949/@comment-25956839-20151017223637

See List of sales so far it's been on sale several times. No 911 RSR 2013 dosn't unlock Endurance Kings, Road to Le Mans does. Yes, keep farming the 4 lapper in Classic Ferrari Showdown with your F40, until you can reach the 10 lapper. If you get the Porsche 919 Hybrid (2014) for free you don't need the Porsche 911 RSR (2013), however if the 919 isn't free the 911 can unlock the showcase event, then the Audi R18 e-tron quattro (2014) is the cheapest, in spend, but may not be the best strategy for 100% completion. Read Talk:Endurance Kings/@comment-Luciano.cassiano-20151014130210.

My advice didn't do the 50 years, until you know about the 919, save your, you may need lots ;)