NEW YORK--(BUSINESS WIRE)--Fitch Ratings expects to assign the following ratings and Rating Outlooks to the Ford Auto Securitization Trust (FAST) 2015-R4 Owner Trust notes: --$236,500,000 class A-1 'F1+sf'; --$155,400,000 class A-2 'AAAsf'; Outlook Stable; --$108,810,000 class A-3 'AAAsf'; Outlook Stable; --$15,810,000 class B 'AA+sf'; Outlook Stable; --$10,540,000 class C 'A+sf'; Outlook Stable; --$10,540,000 class D 'BBB+sf'; Outlook Stable. KEY RATING DRIVERS Strong Credit Quality: The 2015-