Sam Posey and McRae won a lot of money and laurels, and drove with control despite also competing in the 1972 Rothmans European Formula 5000 Championship, in which he placed third. In the combined F1/F5000 International Trophy, McRae finished seventh, the first F5000 car and for a while had run ahead of Graham Hill in a F1 Brabham BT34 and kept up with the F1 McLarens of Denny Hulme and Peter Revson, this reflected the very good race car set up skills of McRae on his Leda F5000. McRae would probably have got a regular F1 drive if he had not been a difficult customer and probably too old at 32 in most teams' eyes to be developed as a serious F1 driver. He was offered a drive in F1 at Nivelles when Jackie Stewart suffered an ulcer, but could not fit it into his demanding programme. He did race for Frank Williams in the British GP the following year but it was an uncompetitive chassis, and a good start was ruined by the multi-car crash which stopped the race after a lap. In 1973, he faced much stronger competition in US F5000 with F1 drivers James Hunt and Jody Scheckter having far better financed efforts and more support. McRae also contested the 1973 Rothmans 5000 European Championship, but recorded only one round win, at Mallory Park. 1974 was McRae's last good year and despite lack of finance and contractual disputes over his new McRae GM2 and its Talon derivative, McRae finished eighth in the US F5000 series and would have been fifth if he had not lost third place with tyre failure at Las Vegas, where he was running ahead of Unser. After writing off the GM2 in practice for the Oran Park, the Tasman round at the start of 1975, McRae contested the US F5000 National Travellers Cheque series, in a Lola T332 which showed promise in the heats, finishing fourth behind J.P Jarier at Watkins Glen and second in a heat at Laguna Seca to Al Unser, ahead of Warwick Brown and qualifying eighth at Long Beach, but never finished better than eighth in the main race during the series. McRae debuted his new GM3 at the last US F5000 race in Riverside in 1976, and retired from midfield. The car featured Perspex windows in the cockpit (like the Tyrrell P34), so the spectators could watch Graham