Fair 'nuff. So that is an EXTREMELY positive sign for demand.
The January price cuts wouldn't have affected the pullforward given that nobody knew about them until after the deadline.
I'm using a "demand pullforward" model where people who were already planning to buy a car decide to buy it *earlier*. In my model, the size of the anticipated price increase determines how many months early they're willing to buy, basically. My pullforward model does not consider permanent changes in demand from price changes, since its purpose is to exclude temporary effects.
If the sales were the same despite the pullforward, it means that without the pullforward, the sales were effectively UP, which is obviously good news for demand. Of course, that rise in sales arguably could have been due to the Jan 1 price cuts.
As you will understand, my model predicts that the pullforward "hangover" will have worn off by March, so if underlying demand is up, that means we should see increased US S/X sales in March. We'll see!