The car proved extremely promising and could have won at least seven races during the course of the season, but reliability proved troublesome, in particular that of the engine. The "FO110E" engine was replaced with the "FO110F" engine from the French Grand Prix, but the trouble happened frequently to either engine. This proved frustrating, especially after Coulthard won the first race of the season in Australia, McLaren's first win since losing Ayrton Senna and also Mercedes' first F1 win since the 1955 Italian Grand Prix. The situation was exacerbated by Häkkinen retiring from three further races whilst in the lead - all from engine failures - including at the Nürburgring, where the team lost a comfortable one-two finish when both cars retired with identical failures within a lap of each other. Coulthard also lost a certain victory – at Montreal, with a clutch problem after a precautionary pitstop just a few laps before the race prematurely ended. However, Coulthard did manage to win again at Monza.