At the Spanish Grand Prix, Sainz continued to experience cooling problems on his MCL35 and was issued with a new chassis. When this failed to solve the problem, the power unit on his car was replaced: McLaren later stated the issue had no relation to the chassis. This was the first power unit change for an MCL35 in the 2020 season and successfully fixed the issue. Sainz and Norris would go on to qualify in seventh and eighth respectively, but were concerned over the impacts of a high temperature race. Despite this, Sainz would finish in sixth and Norris in tenth. The team maintained their fourth place in the standings, with Sainz improving to ninth and Norris falling to seventh. Having scored 62 points already in the Constructors' Championship, they matched their 2018 total in six races. Despite concerns during pre-season testing over the pace of the Racing Point RP20, McLaren became more confident with the performance of the car, with Seidl stating the team could fight for third place in the Constructors' Championship.