Nine rare Lamborghinis, including one of the earliest 350 GTs and a Miura owned by the chairman of Marriott International, will be among the headliners this year at the Pebble Beach Concours d'Elegance. Lamborghini is one of three featured marques this year at Pebble Beach, sharing the spotlight with the General Motors centennial and Lancia. The annual festival of vintage cars is expected to have a field of about 175. J.W. Marriott Jr.'s car, a 1967 Miura P400 Bertone production prototype, was purchased by the hotel scion that year in Rome. The first 350 GT was seen at the 1963 Turin motor show, and a 1964 Touring production prototype will be shown at Pebble Beach. The collection of Lamborghinis also will include several rare cars from the Italian automaker's storied 46-year history, including five from the 1960s, a 1977 Countach LP 400 Bertone and a 1996 Raptor Zagato coupe.Lamborghini will have its chief test driver, Valentino Balboni, a 40-year veteran of the company, serving as a judge.