<DOCUMENT>
<TYPE>EX-99.3
<SEQUENCE>6
<FILENAME>a2136206zex-99_3.txt
<DESCRIPTION>EXHIBIT 99.3
<TEXT>
<Page>


                                                                    EXHIBIT 99.3

                   CERTIFICATE OF PRINCIPAL EXECUTIVE OFFICER
                                   PURSUANT TO
                             18 U.S.C. SECTION 1350
      AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Frank Stronach, the Chairman, Interim Chief Executive Officer and Interim
President of Magna International Inc. (the "Company"), certify that:

1.   the Annual Report on Form 40-F of the Company dated May 17, 2004 for the
     fiscal year ending December 31, 2003 (the "Report") fully complies with the
     requirements of Sections 13(a) and 15(d) of the Securities Exchange Act of
     1934; and

2.   the information contained in the Report fairly presents, in all material
     respects, the financial condition and results of operations of the Company.

Dated: May 17, 2004

                                           /s/ FRANK STRONACH
                                           -------------------------------------
                                           Frank Stronach
                                           Chairman, Interim Chief Executive
                                           Officer and Interim President

A signed original of this written statement required by Section 906 has been
provided the Company and will be retained by the Company and furnished to the
Securities and Exchange Commission or its staff upon request.

</TEXT>
</DOCUMENT>
