 Complete the following phrase:  Despite the rather interim nature of its engine and chassis configuration, on its World Championship debut at the 1964 Monaco Grand Prix the BRM P261 had the best of starts. Although Hill and team-mate Richie Ginther only managed to qualify in third and eighth places, respectively, in the race Hill set fastest lap, and the two P261s finished first and second. It was the first of Hills five victories on the Côte dAzure. Hill continued to perform well throughout the first half of the season, and took a string of three back-to-back second places in 