sponsored by Combustion Engines Group of the Institution of Mechanical Engineers. sponsored by Materials Group of the Institution of Machanical Engineers. sponsored by the Tribology Group of the Institution of Mechanical Engineers. sponsored by Industries of the Institution of Mechanical Engineers. sponsored by Automobile Division of the Institution of Mechanical Engineers. sponsored by the Automobile Division of the Institution of Mechanical Engineers. sponsored by the Automobile Divibion of the Institution of Mechanical Engineers. sponsored by the Automobile Division of The Institution of Mechanical Engineers. sponsored by The Engineering Sciences Division of The Institution of Mechanical Engineers. sponsored by the Power Industries Division of the Institution of Mechanical Engineers.