The team used the BT49 over four seasons. In the 1980 season Piquet scored three wins and the team took third in the Constructors' Championship with Piquet second in the Drivers' Championship. This season saw the introduction of the blue and white livery that the cars would wear through several changes of sponsor, until the team's demise in 1992. With a better understanding of ground effect, the team further developed the BT49C for the 1981 season, incorporating a hydropneumatic suspension system to avoid ride height limitations intended to reduce downforce. Piquet, who had developed a close working relationship with Murray, took the drivers' title with three wins, albeit amid accusations of cheating. The team finished second in the Constructors' Championship, behind the Williams team.