Bizzarrini P538 drivers Edgar Berney and Andre Wicky, but records indicate both retired after three hours with a cooling problem. A second team in a production-based Bizzarrini A3/C, driven by Sam Posey and Massimo Natili, was disqualified after a pit lane violation, possibly while returning with serious frame damage. American Ferrari driver Mike Gammino then commissioned a Lamborghini 4.0-liter V12 powered car, which he raced once. Bizzarrini attempted to build a second, 3.5-litre V12 car for Le Mans, but was unable to complete it before bankruptcy. Beginning in the mid-1970s and continuing at least through the 1990s, former Bizzarrini engineer Salvatore Diomante
Lamborghini Miura to showing the car, they decided to fill the engine bay with ballast and keep the hood locked throughout the show, as they had three years earlier for the début of the 350GTV. Sales head Sgarzi was forced to turn away members of the motoring press who wanted to see the P400's power plant. Despite this setback, the car was the highlight of the show, immediately boosting stylist Marcello Gandini's reputation. The favourable reaction at Geneva meant the P400 was to go into production by the following year. The name "Miura", after the famous Spanish fighting bull breeder (), was