Exhibit 99.1


[GRAPHIC OMITTED]                                       [GRAPHIC OMITTED]



GRUPO TMM COMPANY CONTACTS:                    KANSAS CITY SOUTHERN CONTACTS:
Brad Skinner                                   MEDIA & INVESTORS
Investor Relations                             William H. Galligan
011-525-55-629-8725 or 203-247-2420            Assistant Vice President Investor
BRAD.SKINNER@TMM.COM.MX                               Relations
                                               816-983-1551
                                               WILLIAM.H.GALLIGAN@KCSR.COM
PROA/STRUCTURA
Marco Provencio                                MEXICO
Media Relations                                Gabriel Guerra
011-525-55-629-8708 and                        Media Relations
     011-525-55-442-4948                       011-525-55-273-5359
MP@PROA.STRUCTURA.COM.MX                       GGUERRA@GCYA.NET


AT DRESNER CORPORATE SERVICES:
Kristine Walczak
(general investors, analysts and media)
312-726-3600
KWALCZAK@DRESNERCO.COM


                     THE BOARDS OF DIRECTORS OF KCS AND TMM
                      APPROVE AMENDED ACQUISITION AGREEMENT

Kansas  City,  MO and Mexico  City,  Mexico,  December  15,  2004 - Kansas  City
Southern  (NYSE:  KSU) ("KCS") and Grupo TMM,  S.A.  (NYSE:  TMM and BMV: TMM A)
("TMM")  announced  today  that  the  companies  have  entered  into an  amended
acquisition  agreement  whereby TMM will sell its 51 percent voting  interest in
Grupo Transportacion Ferroviaria Mexicana, S.A. de C.V. ("Grupo TFM") to KCS for
$200 million in cash, 18 million  shares of KCS common  stock,  $47 million in a
two-year  promissory  note,  and up to $110 million  payable in a combination of
cash and KCS common stock upon successful  resolution of the current proceedings
related  to the VAT  Claim  and the Put with  the  Mexican  Government.  The $47
million  promissory  note and a portion of the $110 million  contingent  payment
will  be  subject   to   certain   escrow   arrangements   to  cover   potential
indemnification  claims. The boards of directors of both companies have approved
the transaction.

As part of the  transaction,  KCS will also enter into a  three-year  consulting
contract with a consulting firm controlled by Jose Serrano Segovia.  KCS and TMM
have also agreed that upon completion of the transaction all litigation  between
the two companies will be dismissed.

Consummation of the transaction  remains subject to the  satisfaction of certain
conditions,  including KCS shareholder approval.  TMM's controlling shareholders
have entered into a voting trust providing for approval of the transaction.

Both  the  Mexican  Foreign  Investment   Commission  and  the  Mexican  Federal
Competition  Commission have approved acquisition of the controlling interest in
TFM by KCS.  Although KCS and TMM previously  satisfied the  requirements of the
U.S.  Hart-Scott-Rodino  Antitrust  Improvements Act of 1976, that authorization
has  expired  and the  parties  have  agreed  to file the  required  information
promptly with the U.S.  Department of Justice.  This  authorization  is required
prior to consummation of the transaction.



"We are very pleased to have entered into this amended  agreement  with TMM, and
believe it will enhance rail  competition  and give  shippers in the NAFTA trade
corridor a strong transportation alternative in this important and growing trade
corridor,"  said Michael R. Haverty,  chairman,  president  and chief  executive
officer of KCS. "This  transaction,  along with our recently approved control of
The Texas Mexican Railway Company, offers our shareholders greater value through
operating  efficiencies and  opportunities  that will come from common ownership
and control.  Our  customers,  both north and south of the border,  will benefit
from these efficiencies as well."

Jose Serrano, chairman and CEO of TMM said, "We're very pleased with the outcome
of the  transaction.  It creates  significant  value for all  shareholders.  The
combination of KCS and TFM creates an efficient  shipping route between the U.S.
and Mexico. TMM shareholders will continue to benefit from significant ownership
in this valuable  franchise.  The net cash proceeds of this  transaction will be
used by TMM to reduce its debt  obligations.  This  transaction  is truly in the
best  interests  of TMM  shareholders  and will  ensure  long  term  growth  and
flexibility at TMM."

Javier  Segovia,  president of TMM said,  "We are extremely  pleased to become a
significant  shareholder in KCS, a strong rail alternative  between the U.S. and
Mexico. TMM and TFM will continue to work closely,  and they have entered into a
marketing  agreement  to  further  our  shared  goals  of  providing  end-to-end
transportation for our customers.  In addition,  the sale of TFM to KCS puts TMM
on a superior financial footing".

TFM, S.A. de C.V., the operating subsidiary of Grupo TFM, and KCSR will continue
as  separate  corporations,  all  under the  common  control  of KCS.  Following
consummation of the transaction, KCS will continue to operate under the KCS name
and will maintain its headquarters in Kansas City,  Missouri.  Grupo TFM and TFM
will remain Mexican corporations,  with their corporate  headquarters located in
Mexico City. TFM holds the concession to operate  Mexico's  Northeast Rail Lines
through June 2047, and has the option to extend the concession for an additional
50 years.  The TFM rail  network  consists  of more than 2,600 miles of mainline
track. The combined system will exceed 5,300 miles of mainline track.

Morgan Stanley acted as exclusive  financial  advisor to KCS on the transaction.
J.P.  Morgan  Securities  Inc. and Elek Moreno Valle y Asociados  S.A.  acted as
exclusive financial advisors to TMM on the transaction.

Headquartered in Mexico City, TMM is a Latin American multimodal  transportation
company.  Through its branch  offices and network of subsidiary  companies,  TMM
provides a dynamic combination of ocean and land transportation  services. Visit
TMM's   web   site   at   http://www.grupotmm.com   and   TFM's   web   site  at
http://www.tfm.com.mx.  Both sites offer Spanish/English language options. Grupo
TMM is listed on the New York Stock Exchange under the symbol "TMM" and Mexico's
Bolsa Mexicana de Valores under the symbol "TMM A."

KCS is a  transportation  holding  company that has railroad  investments in the
United States,  Mexico and Panama.  Its primary  holding in the United States is
The Kansas City  Southern  Railway  Company.  KCS owns 51% of The Texas  Mexican
Railway  Company,  which connects The Kansas City Southern  Railway  Company and
TFM. Headquartered in Kansas City, Missouri, KCS serves customers in the central
and  south  central  regions  of the  United  States.  KCS'  rail  holdings  and
investments  are primary  components  of a NAFTA  Railway  system that links the
commercial and industrial centers of the United States and Mexico. KCS' web site
is WWW.KCSI.COM.

MEDIA/ANALYSTS CONFERENCE CALL NOTICE:
THERE WILL BE A 1:00 P.M.  CENTRAL  STANDARD  TIME (2:00 P.M.  EASTERN  STANDARD
TIME)  CONFERENCE CALL TODAY,  DECEMBER 15,  DISCUSSING THE AMENDED  ACQUISITION
AGREEMENT  HOSTED BY MICHAEL  HAVERTY,  GERALD  DAVIES,  RONALD RUSS AND VICENTE
CORTA. A DISCUSSION OF THE AMENDED ACQUISITION  AGREEMENT WILL BE AVAILABLE FROM
A LINK ON THE HOME PAGE OF WWW.KCSI.COM.  THOSE INTERESTED IN PARTICIPATING  ARE
INVITED  TO  CALL   1-800-955-1795   (U.S.   AND   CANADA)   OR   1-706-643-0096
(INTERNATIONAL).  A REPLAY  WILL BE  AVAILABLE  THROUGH  DECEMBER  22 AND CAN BE
ACCESSED  BY  CALLING   1-800-642-1687   (U.S.  AND  CANADA)  OR  1-706-645-9291
(INTERNATIONAL) AND PROVIDING THE CONFERENCE ID 2857442.



INCLUDED IN THIS PRESS RELEASE ARE CERTAIN FORWARD-LOOKING STATEMENTS WITHIN THE
MEANING OF SECTION 27A OF THE  SECURITIES  ACT OF 1933, AS AMENDED,  AND SECTION
21E OF THE  SECURITIES  EXCHANGE ACT OF 1934, AS AMENDED.  SUCH  FORWARD-LOOKING
STATEMENTS  ARE BASED ON THE BELIEFS OF TMM'S AND KCS'  MANAGEMENT AS WELL AS ON
ASSUMPTIONS  MADE. ACTUAL RESULTS COULD DIFFER MATERIALLY FROM THOSE INCLUDED IN
SUCH FORWARD-LOOKING STATEMENTS.  READERS ARE CAUTIONED THAT ALL FORWARD-LOOKING
STATEMENTS INVOLVE RISKS AND UNCERTAINTY. FOR ADDITIONAL INFORMATION RELATING TO
SUCH  RISKS  AND  UNCERTAINTIES,  READERS  ARE  URGED TO  REVIEW  TMM'S AND KCS'
RESPECTIVE  FILINGS AND SUBMISSIONS WITH THE SECURITIES AND EXCHANGE  COMMISSION
UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.

IN CONNECTION WITH THE PROPOSED  TRANSACTION,  KCS WILL FILE RELEVANT  MATERIALS
WITH THE SECURITIES AND EXCHANGE COMMISSION ("SEC"),  INCLUDING AN AMENDED PROXY
STATEMENT SOLICITING  STOCKHOLDER APPROVAL OF CERTAIN ACTIONS IN CONNECTION WITH
THE TRANSACTION.  STOCKHOLDERS ARE URGED TO READ THE AMENDED PROXY STATEMENT, AS
WELL AS ANY AMENDMENTS AND  SUPPLEMENTS TO THE PROXY STATEMENT (IF AND WHEN THEY
BECOME  AVAILABLE) AND ANY OTHER RELEVANT  DOCUMENTS FILED WITH THE SEC, BECAUSE
THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE TRANSACTION.  STOCKHOLDERS AND
INVESTORS  MAY  OBTAIN  THE  AMENDED  PROXY  STATEMENT  AND ANY  OTHER  RELEVANT
DOCUMENTS  FREE OF  CHARGE  AT THE  SEC'S  INTERNET  WEB  SITE  AT  www.sec.gov.
STOCKHOLDERS  MAY ALSO OBTAIN FREE OF CHARGE THE AMENDED PROXY STATEMENT AND ANY
OTHER RELEVANT DOCUMENTS BY CONTACTING THE OFFICE OF THE CORPORATE  SECRETARY AT
KCS' PRINCIPAL  EXECUTIVE OFFICES AT (816) 983-1538.  WRITTEN REQUESTS SHOULD BE
MAILED TO P.O. BOX 219335,  KANSAS CITY,  MISSOURI  64121-9335  (OR IF BY UNITED
PARCEL SERVICE OR OTHER FORM OF EXPRESS DELIVERY TO 427 WEST 12TH STREET, KANSAS
CITY, MISSOURI 64105). SUCH AMENDED PROXY STATEMENT IS NOT CURRENTLY  AVAILABLE.
KCS AND ITS DIRECTORS AND EXECUTIVE OFFICERS MAY BE DEEMED TO BE PARTICIPANTS IN
THE  SOLICITATION OF PROXIES FROM KCS  STOCKHOLDERS  WITH RESPECT TO APPROVAL OF
CERTAIN ACTIONS IN CONNECTION WITH THE TRANSACTION.  INFORMATION REGARDING THESE
DIRECTORS AND EXECUTIVE OFFICERS AND THEIR BENEFICIAL OWNERSHIP INTERESTS IN KCS
CAN BE FOUND IN KCS' PROXY  STATEMENT  ON  SCHEDULE  14A,  FILED WITH THE SEC ON
APRIL 5, 2004, IN CONNECTION  WITH THE 2004 ANNUAL MEETING OF KCS  STOCKHOLDERS.
INVESTORS  MAY OBTAIN  ADDITIONAL  INFORMATION  REGARDING  THE INTERESTS OF SUCH
PARTICIPANTS BY READING THE AMENDED PROXY STATEMENT FILED IN CONNECTION WITH THE
TRANSACTION WHEN IT BECOMES AVAILABLE.

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