Exhibit 99.1

                           SUPERIOR INDUSTRIES UPDATES
                              THIRD QUARTER OUTLOOK

         VAN NUYS, CALIFORNIA -- September 20, 2004 -- SUPERIOR INDUSTRIES
INTERNATIONAL, INC. (NYSE:SUP) expects operating results for the third quarter
of 2004 will be below consensus expectations. Management expects about a 5%
decline in unit wheel shipments for the third quarter, and net earnings of
approximately $0.20 per diluted share.

         "Our major OEM customers have announced planned production cuts for the
second half of the year based on weak summer sales of cars and light trucks
resulting in an unanticipated decline in unit wheel shipments for the company.
In addition, operating difficulties led to a delay in the ramp-up of production
in certain of our factories following this year's extended seasonal shutdowns,"
said President and COO Steve Borick.

         Borick continued, "The Company's investments in new efficiency
enhancement programs have not been fully implemented. The result of these
investments will help us overcome the pricing and operating challenges facing
our industry. The global competitive pricing pressures have created an
uncertainty related to attainment of our historical level of profitability. Our
strong technical, manufacturing and financial resources will give us the
opportunity to enhance Superior's position and expand market share."

         As previously announced, the company will make a presentation that will
be webcast at the Banc of America Securities 34th Annual Investment Conference
on Tuesday, September 21, 2004 at 3:00 p.m. PDT at which time the company
anticipates discussing this update. You can access the webcast from the
investors tab at www.supind.com.

ABOUT SUPERIOR INDUSTRIES

         Superior supplies aluminum wheels and other aluminum automotive
components to Ford, General Motors, DaimlerChrysler, Audi, BMW, Isuzu, Jaguar,
Land Rover, Mazda, MG Rover, Mitsubishi, Nissan, Subaru, Toyota, and Volkswagen.
For additional information, visit www.supind.com.

FORWARD-LOOKING STATEMENTS

         This press release contains statements that are forward-looking
statements within the meaning of the Private Securities Litigation Reform Act of
1995. These statements are based on current expectations, estimates and
projections about the company's business based, in part, on assumptions made by
management. These statements are not guarantees of future performance and
involve risks, uncertainties and assumptions that are difficult to predict.
Therefore, actual outcomes and results may differ materially from what is
expressed or forecasted in such forward-looking statements due to numerous
factors and risks discussed from time to time in the company's Securities and
Exchange Commission filings and reports. In addition, such statements could be
affected by general industry and market conditions and growth rates, and general
domestic and international economic conditions. Such forward-looking statements
speak only as of the date on which they are made and the company does not
undertake any obligation to update any forward-looking statement to reflect
events or circumstances after the date of this release.