Exhibit 4.15

CONFORMED COPY

SHAREHOLDERS’ CONTRIBUTION LOAN AGREEMENT

This agreement sets out the terms of the shareholders’ contribution made to Concordia Bus AB (“Bus”) by Concordia Bus Nordic AB (“Nordic”) in February 2003. Unless otherwise specified, defined terms used in this agreement shall have the meanings assigned to them in the Mezzanine Facility Agreement entered into on or about the date hereof between, inter alia , Bus, Concordia Bus Nordic Holding AB and certain lenders named in that agreement (the “ Mezzanine Facility Agreement ”).

1.                                                Nordic has undertaken to make a shareholders’ contribution to Bus in February 2003 of SEK 108,273,353, which remains outstanding. Consequently, Bus has a claim on Nordic in the amount of SEK 108,273,353 at the date hereof (as the same may be increased in accordance with this agreement or decreased as a result of repayments under Clause 4). Prior to this agreement becoming effective, Bus has transferred to Concordia Bus Nordic Holding AB (“Holding”) its rights to receive SEK 80,000,000 of the shareholders’ contribution under this Agreement (such transferred part of the shareholders’ contribution is hereinafter referred to as the “Loan”).

2.                                                For so long as the Tranche C Facility is outstanding:

2.1                                           the Loan shall bear interest at an annual rate of 11% per annum (calculated on a 360-day basis) on the principal amount of the Loan;

2.2                                           interest shall be paid semi-annually in arrears, two business days before each Interest Payment Date, and upon the date the Loan is to be repaid in full (the “ Interest Date ”);

2.3                                           the Loan shall be repaid in full on 15 October 2010 and prior to such date Bus shall not demand the repayment of any principal amount of the Loan and Nordic shall not be entitled to prepay any amount of the Loan outstanding; and

2.4                                           without prejudice to Clause 2.2, any interest that is not paid when due shall on the day following the relevant Interest Date be added to the principal