When the team folded , he joined Bernie Ecclestone 's Brabham team . He become the chief mechanic for Nelson Piquet in and seasons . Following the demise of the team , he joined Bernie Ecclestone 's Brabham team at Weybridge , where he would stay for the following decade , becoming chief mechanic for the World Drivers ' Championship successes of Nelson Piquet in and and later rising to chief engineer , while Nick went on to open a Motor Racing spares shop near the Brands Hatch circuit .