Trying to decide, spend the extra $3K to buy the Grand Touring Reserve with turbo engine?

2020 CX5 Signature
I may want to invest in all weather tires once we start getting snow.
Please note that "snow tires" are not only better for snow, they are better for low temperatures also. The rubber compound used in summer tires and all-season tires becomes harder and less grippy when temps are below about 40°. If your area in the winter has temps steadily in the 30's or lower you will have better traction in dry and wet with tires that are designed for colder temperatures. I live in Maryland and while we can get a fair amount of snow every now and then, the temps can be quite cool all winter. Both my lovely bride and I have snow tires that go on about the end of November or so and we run them all winter.