Ferrari's legendary 250 series is widely regarded as the most important of the Italian supercar maker's classic cars, spawning the GTO, Testa Rossa, California Spyder and Lusso. The Ferrari 250 series is turning 60-years-old this year, and to mark the occasion the Ferrari Museum in Maranello is displaying two unique GT models: a pair of road-going and racing models built between 1952 and 1963 that sported Giachino Colombo's famous 3.0-liter V12 engine.