In 1964, Ferrari launched the 275 P and 330 P, improved variants of the 250 P with larger engines and modified bodywork. The 275 P featured a 3.3L engine, while the 330 P used a 4.0L V12, offering 370 bhp compared to the 275 P's 320 bhp. Despite their differences in power and weight, both models were used concurrently in racing. Notably, they achieved significant success in the 1964 and 1965 racing seasons, including a notable 1-2-3 finish at the 1964 24 Hours of Le Mans, demonstrating Ferrari's dominance in endurance racing.