In reply to Scott_vzr:
I've not been there this weekend, but was up on Wed and had to put chains on to get to the Lawers car park. My guess would be that it will be possible with chains but not without since quite a bit more snow will have come down since then
Haven't been that far, but was on Vorlich from Edinample today and there was snow on the south Loch Earn road. And since getting home there's been quite a bit of fresh snow in Stirling this evening.