 Complete the following phrase:  The 1967 Championship was essentially an internal affair within the Brabham Racing Organisation team for most of the year, but the new Lotus 49 gave Jim Clark and Graham Hill the opportunity to bite back. Their Brabham-Repcos were not the fastest cars, however they were reliable and consistent, as were Brabham and Hulme. During the season, he would take two wins in the 11-race Championship, at 