After Mike Spence's death during practice for the 1968 Indianapolis 500 race Attwood rejoined the BRM works team, now run by Parnell, as his replacement. Attwood's first race on his return was perhaps his most spectacular, taking fastest lap in the 1968 Monaco Grand Prix, on his way to a strong second-place finish behind Graham Hill's works Lotus. However, results declined through the remainder of the season, and four races from the end Attwood was himself replaced by Bobby Unser.