Fitch Upgrades 1 & Affirms 3 Classes of Chase Auto Owner Trust 2005-B

NEW YORK--Fitch Ratings upgrades the ratings of Chase Manhattan Auto Owner Trust 2005-B as follows:

--Class A-2 affirmed at 'AAA';

--Class A-3 affirmed at 'AAA';

--Class A-4 affirmed at 'AAA';

--Certificates upgraded to 'AA+' from 'AA-'.

The rating actions are a result of continued available credit enhancement in excess of stressed remaining losses. Current principal allocation and expected future cashflows are also contributing factors. The collateral continues to perform within Fitch's base case expectations. Currently, under the credit enhancement structure, the securities can withstand stress scenarios consistent with the current rating categories and still make full payments of interest and principal in accordance with the terms of the documents.

As before, the ratings reflect the quality of Chase Manhattan Bank USA, NA's (Chase) retail auto loan originations, the sound financial and legal structure of the transaction, and servicing provided by Chase.

Fitch's rating definitions and the terms of use of such ratings are available on the agency's public site, www.fitchratings.com. Published ratings, criteria and methodologies are available from this site, at all times. Fitch's code of conduct, confidentiality, conflicts of interest, affiliate firewall, compliance and other relevant policies and procedures are also available from the 'Code of Conduct' section of this site.