Lamborghini Miura cars over the race car-derived machines produced by local rival Ferrari. The Miura's rolling chassis was presented at the 1965 Turin auto show, and the prototype P400 debuted at the 1966 Geneva show. It received stellar receptions from showgoers and the motoring press alike, each impressed by Marcello Gandini's sleek styling and the car's revolutionary mid-engine design. Lamborghini's flagship, the Miura received periodic updates and remained in production until 1973. A year later the extreme Countach entered the company's lineup, amid tumultuous financial times for the company. During 1965, Lamborghini's three top engineers, Gian Paolo Dallara, Paolo Stanzani and Bob
Lamborghini Miura steel chassis components and body panels with the lightweight aluminium alloy Avional and replacing side windows with plastic, with the resulting car weighing approximately 800 pounds less than a production Miura. A front spoiler was added and the headlights were replaced with fixed, faired-in units. Wallace substituted two smaller, sill-mounted fuel tanks for the single larger original unit. The suspension was reworked and widened (9" in the front, 12" in the rear), and lightweight wheels were fitted. The engine was modified to produce 418–440 bhp at 8800 rpm, with an increased compression ratio, altered cams, electronic ignition, dry-sump lubrication and