NEW YORK--(BUSINESS WIRE)--Fitch Ratings has assigned the following ratings to the notes issued by Santander Drive Auto Receivables Trust 2015-4: --$203,400,000 class A-1 notes 'F1+sf'; --$188,760,000 class A-2-A notes 'AAAsf'; Outlook Stable; --$188,760,000 class A-2-B notes 'AAAsf'; Outlook Stable; --$153,700,000 class A-3 notes 'AAAsf'; Outlook Stable; --$170,500,000 class B notes 'AAsf'; Outlook Stable; --$183,100,000 class C notes 'Asf'; Outlook Stable; --$109,200,000 class D notes 'BBBsf'