Exhibit 23 Consent of Independent Auditors We consent to the incorporation by reference in the Registration Statement (Form S-3 No. 333-45105) of Union Tank Car Company and in the related Prospectus and Prospectus Supplement of our report dated March 11, 1998 with respect to the consolidated financial statements of Union Tank Car Company included in the Annual Report (Form 10-K) for the year ended December 31, 1997. ERNST & YOUNG LLP Chicago, Illinois March 23, 1998 -47-