I drive about 140 miles a day all interstate or 4 lane and my truck only gets about 15-17 mpg and I need an economy car but don't want a boring slow something. How good is the SVTF in the winter, would I have to get winter tires and would they last all winter putting that kind of mileage on them? I am looking at either a new SVTF or the ZTS with the new 2.3 engine. Need some in put from people who have experienced something similar. Thanks