sentences:  The final two races in the United States saw only the factory team bring two cars, in which they managed finishes of 13th and 9th-place.The factory squad ended the season without any points, while GBF's points finish at Helsinki earned them 8th place in the championship.Following the 1997 season, Lotus and its parent company, Proton, decided that the GT1 was not only lacking in pace in comparison to Porsche, Mercedes-Benz and the older McLarens, but that it was also extremely expensive.