[url=http://www.carsfromitaly.com/ferrari/index.html]Ferrari pages [/url] said:
...In 1972, at the Geneva Motorshow, the 246GT was joined by the 246GTS which featured a removable targa roof panel. The small rear side windows were also deleted, the butresses becoming solid with three-slat vents. Production of both models went on until 1973 by which time 2,732 GT's and 1,180 GTS's had been built. It is worth stressing that (despite many owners' modifications) these cars were never sold with any Ferrari badges on them. This engine was also used very successfully in the Lancia Stratos....