06. Ferrari 275 GTB/C Speciale : US$26,400,000
For the 1965 racing season, 4 lightweight 275 GTB Competizione Speciales (1964), a prototype and three production models, were built and equipped with 250 LM engines. The design was by Pininfarina and the coachwork by Scaglietti. The design incorporated reduced weight with a ten percent reduction in size, smaller diameter chassis, 21 gauge alloy body, Plexiglas windows, and magnesium was used in certain engine and transaxle castings. The Fédération Internationale de l’Automobile (FIA) at first refused to homologate the model as a GT contender but settled on a compromise when Enzo Ferrari threatened to abandon the motor sport.
05. Ferrari 275 GTB/4*S NART Spider : US$27,500,000
A 275 GTB/4 N.A.R.T. Spyder version was only available from a single American dealer, Luigi Chinetti. He asked Sergio Scaglietti and Enzo Ferrari to build a few Spyder, a convertible with no roof, versions of the 275 GTB/4, which he bought for approximately $8,000 each; N.A.R.T. stood for Chinetti’s North American Racing Team. It was to be a custom run of 25 cars straight from Scaglietti, but because of low sales, just 10 were built in 1967 and 1968, making this one of the most valuable Ferraris. The ten NART Spiders used chassis numbers 09437, 09751, 10139, 10219, 10249, 10453, 10691, 10709, 10749, and 11057.