Ferrari's lineup of road cars had expanded greatly by the late '60s, but they needed a model to fill the gap between their sports offerings and luxurious GTs. In 1966, Ferrari introduced the 330 GTC and convertible GTS — and they were an instant hit. Ferrari bumped up the engine displacement in 1968 to 4.4 liters, increasing horsepower to 320 and torque to 267 ft-lbs. Along with the beautiful Pininfarina bodywork, this became the ultimate version to own. The 1969 365 GTS Spider pictured here might be the best example available, being one of only 20 in its color combination and the only one with script Pininfarina logos. A recent $500,000 restoration and exhaustive documentation, along with the original tool rools and period-correct Ferrari keychain make this a must for any serious collector.