The JBW-Maserati had further outings in the 1961 Intercontinental Formula events, but on each occasion Naylor failed to finish. The car also ran with a 1.5-litre Maserati engine in some non-Championship events, but with no better result. For the World Championship and most other Formula One events Naylor and Wilkinson decided to switch to Coventry Climax power, and redesigned the JBW car around their "FPF", straight-4 motor. This new car — the JBW Type 2 — made its first appearance at the British Empire Trophy race at Silverstone (ironically an Intercontinental Formula event), but failed to finish. It also failed to reach the finishing flag in its only World Championship event, the 1961 Italian Grand Prix, but only a week later provided Naylor with his best ever finish when he took 9th place in the 1961 International Gold Cup at Oulton Park. Naylor only made one further appearance in the JBW-Climax, and retired on the first lap of the Brands Hatch-hosted Lewis-Evans Trophy. At the end of the 1961 season, and in increasingly poor health, Naylor retired from competition and wound up JBW Cars.