For those of you who park their cars in non-heated garages, do you experience any acceleration of rust formation in the winter?

It is a tradeoff for me. If the car is parked inside, starting the car is easier on the engine and drivetrain since the temps are above-zero (single-digit). And warmup is faster. And no need to clear the glass of snow and ice. And it is more convenient to unload stuff like groceries.

my guess about these cars' resistance to rust is that aside from their comprehensive rustproofing, they use galvanized steel in critical parts.