SECURITIESTable ANDof EXCHANGE COMMISSIONContents

~~Washington,~~SECURITIES ~~D.C. 20549~~AND EXCHANGE COMMISSION

~~Form~~WASHINGTON, ~~8-K~~D.C. 20549

~~CURRENT~~FORM ~~REPORT~~8-K

~~Pursuant~~CURRENT toREPORT ~~Section 13 or 15(d) of the~~

~~Securities~~PURSUANT ~~Exchange~~TO ~~Act~~SECTION 13 OR 15(d) of ~~1934~~the

~~Date~~SECURITIES ofEXCHANGE ~~Report~~ACT ~~(Date~~OF of1934 ~~earliest event~~

~~Reported~~Date of Report (Date earliest event reported): ~~April~~ 26May 16, 2005

UPFC Auto Receivables Trust 2005-A

ACE SECURITIES CORP.
(Exact name of registrant as specified in its charter)
Delaware	333-119047	56-2088493
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)
6525 Morrison Boulevard, Suite 318 Charlotte, North Carolina 28211
(Address of Principal Executive Offices) (Zip Code)
Registrant’s telephone number, including area code (704) 365-0569 Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

(Exact name of registrant as specified in charter)

Item 9.01. Financial Statements and Exhibits

Delaware

333-119047-09

201402255

(State or other jurisdiction

of incorporation)

(Commission file number)

(IRS employer

identification no.)

(a)

c/o United Auto Credit Corporation (as Servicer)

3990 Westerly Place, Suite 200

Newport Beach, California

92660

(Address of principal executive offices)

(Zip code)

~~Not~~Registrant’s telephone ~~applicable.~~number, including area code: (949) 224-1244

~~(b)~~This filing relates to Registration Statement No. 333-119047-09

~~Not~~Check ~~applicable.~~the appropriate box below if the Form 8-K is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (c17 CFR 230.425)

~~Exhibits:~~¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (I7 CFR 240.14a-12)

1¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.114d-2(b))

~~Amended~~¨ &Pre-commencement ~~Restated~~communications ~~Trust~~pursuant ~~Agreement,~~to ~~between~~Rule ~~ACE~~13e-4(c) ~~Securities~~under ~~Corp.~~the ~~and~~Exchange ~~Wells~~Act ~~Fargo~~(17 ~~Delaware~~CFR ~~Trust Company, dated March 31, 2005~~240.13e-4(c))

1.2Table of Contents

~~Indenture,~~ TABLE ~~between~~OF ~~the~~CONTENTS ~~Trust and Deutsche Bank Trust Company Americas, dated as March 31, 2005.~~

1ITEM 8.301. OTHER EVENTS ITEM 9.01. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS SIGNATURES INDEX TO EXHIBITS Exhibit 20.1

SaleTable and Servicing Agreement, among the Trust, ACE Securities Corp., United Auto Credit Corporation. and Deutsche Bank Trust Company Americas, dated as of March 31, 2005.Contents

1 ITEM 8.401. OTHER EVENTS

~~Sale~~The ~~Agreement~~Commission declared effective a Registration Statement on Form S-3 (File No. 333-119047) under the Securities Act of 1933 as amended (the “Securities Act’’) on September 23, ~~among~~2004, ~~United~~providing ~~Auto~~for ~~Credit~~the ~~Corporation~~issuance ~~and~~by Ace Securities Corp. (“Originator”) of several series of asset-backed securities through a series of trusts to be originated by the Originator. The UPFC Auto Receivables ~~Corp.~~Trust 2005-A (the “Trust”) is one of the trusts to be so originated and the Trust issued the following securities, consisting of Automobile Receivables Backed Notes in three classes, pursuant to a prospectus dated ~~March~~as 31of April 4, 2005. consisting of a prospectus supplement and base prospectus (the “Prospectus”):

1.5


$33,000,000 3.122%		Class A-1 Notes
$80,000,000 3.85%		Class A-2 Notes
$82,000,000 4.34%		Class A-3 Notes

~~Purchase~~The ~~Agreement~~Class A-1 Notes, ~~among~~Class A-2 Notes, and Class A-3 Notes (the “Notes”) were issued by the Trust on April 14, 2005. The Notes are secured by the assets of the Trust. The Notes were issued in fully-registered form. As more fully described in the Prospectus, the assets of the Trust include (i) a pool of “sub-prime” retail installment contracts secured by liens on new and pre-owned automobiles and light trucks (“Receivables”) and (ii) certain accounts maintained by the Trustee on behalf of the Trust, including all investments held thereby and all income from the investment of funds therein and all proceeds therefrom. The Trust did not issue any certificates representing ownership interests in the assets of the Trust pursuant to the Prospectus, but did issue certificates to UPFC Auto Receivables Corp. ~~and~~The ~~Ace~~certificates ~~Securities~~issued to UPFC Auto Receivables Corp., ~~dated~~are ~~April~~not 14registered pursuant to the Registration Statement, ~~2005~~as amended.

Pursuant to the Sale and Servicing Agreement (“Agreement”) entered into by and among the Trust, United Auto Credit Corporation (the “Servicer”), Deutsche Bank Trust Company Americas (“Trust Collateral Agent”), CenterOne Financial Services LLC and the Originator of the Trust, the Trust Collateral Agent is required to deliver to each Noteholder with respect to each monthly distribution to holders of the Notes a Servicer’s certificate regarding the assets of the Trust and the proceeds received by it therefrom as to the monthly reporting period preceding each Distribution Date (the “Servicer’s Certificate”). A copy of the Servicer’s Certificate with respect to the May 16, 2005 Distribution Date is filed herewith as Exhibit 20.1 and is incorporated herein by this reference.6 Pursuant to the Agreement, proceeds of the Receivables and other funds received in the amount of $9,067,114.25 were invested by the Trust Collateral Agent during the Collection Period with respect to the current Distribution Date, $644,812.00 and $17,806,671.98 were distributed to the holders of the Notes as payments of interests and principal on the Notes, respectively, and the balance was distributed in accordance with the Agreement on the current Distribution Date.

~~Underwriting~~No ~~Agreement~~matters ~~among~~occurred ~~Ace~~within ~~Securities~~the ~~Corp.~~period ~~and~~as ~~Deutsche~~to ~~Bank~~which ~~Securities~~this ~~Inc.,~~Current ~~dated~~Report ~~April~~on 7,Form ~~2005~~8-K relates that would be reportable under Items 1 through 5 of Part II of Form 10-Q.

1 ITEM 9.701. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS

~~Spread~~(c) ~~Account Agreement among the Trust and Ambac Assurance Corporation, dated April 14, 2005.~~Exhibits

~~SIGNATURES~~The exhibits listed on the Exhibit Index on page 5 of this Form 8-K are filed herewith.

~~Pursuant~~Page to3 ~~the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.~~

ACETable Securitiesof Corp.Contents

~~By:~~ SIGNATURES ~~_/s/ Doris J. Hearn~~

~~Name:~~Pursuant ~~Doris~~to J.the requirements ~~Hearn~~of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Title: Vice President


UPFC Auto Receivables Trust 2005-A

By:		United Auto Credit Corporation
		as Servicer

~~Dated~~Date: ~~April~~ 26May 19, 2005

~~EXHIBIT~~/s/ ~~INDEX~~Garland Koch Garland Koch Chief Financial Officer

~~Exhibit~~Page ~~No.~~4

DescriptionTable of Contents

~~1.1~~ INDEX TO EXHIBITS

Amended & Restated Trust Agreement, between ACE Securities Corp. and Wells Fargo Delaware Trust Company, dated March 31, 2005.


Exhibit No.	Description	Page
20.1	Servicer’s Certificate as to the May 16, 2005 Distribution	—

~~1.2~~Page 5

Indenture, between the Trust and Deutsche Bank Trust Company Americas, dated March 31, 2005.

1.3

Sale and Servicing Agreement, among the Trust, ACE Securities Corp., United Auto Credit Corporation. and Deutsche Bank Trust Company Americas, dated as of March 31, 2005.

1.4

Sale Agreement, among United Auto Credit Corporation and UPFC Auto Receivables Corp., dated March 31, 2005.

1.5

Purchase Agreement, among UPFC Auto Receivables Corp. and Ace Securities Corp., dated March 31, 2005.

1.6

Underwriting Agreement among Ace Securities Corp. and Deutsche Bank Securities Inc., dated April 7, 2005.

1.7

Spread Account Agreement among the Trust and Ambac Assurance Corporation, dated April 14, 2005.

Filing Compare · UPFC Auto Receivables Trust 2005-A