Driving in winter on bald all-season rubber is a gamble we shouldn't take, but a dedicated set of snow tires on steel wheels takes the bite out of icy commutes. Running a car gets expensive fast when you add up maintenance, gas, and seasonal swaps, which is why timing matters. Buying in early fall before the first local freeze means shops have stock and you aren't fighting the panic rush when the first storm hits.
We can separate how we negotiate the price from how we pay for it, because a card window is for managing cash flow, not a substitute for a discount. Walk into the shop or check online before the temperature drops, nail down the mounting and balancing fees, and get the best price on the rubber first.
That intro window is a firm deadline, not free money, so treat your monthly payment like a utility bill. If any part of that $950 balance is still sitting there when the 15 months run out, standard interest will hit the whole original amount.