Yeah, on a modern car they invert the logic and call it an 'Eco-Mode' button, and you turn it OFF when you want the car to stop racing to 4th gear and trying its damnedness to stay there.
As for the other button, Winter Mode will cause it to drop to 3rd gear and stay there until you reach a certain speed. After you cross that speed, it will turn itself off and refuse to turn back on until you slow down again. It is sort of the Anti-Power Button. It makes it so that you crawl away from stoplights slowly instead of just going nowhere with all four wheels spinning.