FWIW, I had an older generation of the Goodyear Ultra Grips on my old Daytona many years ago, and they were incredibly good in everything from deep snow to freezing sleet and slush. They were great tires.
But the 15" wheels fit just fine on Amber's Fiesta. They actually have a tad more caliper clearance than the 15" snow wheels I run on my current Daytona, which has shown no problems going into its fourth season.