How much better of a deal do you get in December?

How much better of a deal do you get from dealers by waiting to buy in December? And, about when do manufactures offer incentives? When I bough my Honda back in 2013 Honda had a $1,000 cash back incentive, but I'm not sure when they first had that offer available. I bought on December 10th. I wouldn't mind buying in late November this time around, but I'm not sure how much I'll even save by waiting. A couple hundred bucks?

Generally speaking the new model year vehicle start to become available around September, so that's likely when dealer incentives will begin to come into play since the dealers want to make room for the new models.

-Rod

It's just early December, but so far the new car market is horrible. Every dealer insists on bundling dealer options (over priced crap that I don't want/need) onto cars. I will wait until late December.