NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) assigns preliminary ratings to five classes of notes issued by DriveTime Auto Owner Trust (DTAOT 2017-4), an auto loan ABS transaction. The expected closing date for the transaction is November 15, 2017. DTAOT 2017-4 will issue $456.23 million of notes collateralized by approximately $570.29 million of subprime auto loan receivables. The preliminary ratings reflect the initial credit enhancement levels ranging from 67.50% for the Class