;^)
The first car to leave the Maranello factory in 1947 was a red, V12-engined Barchetta. From the beginning it was designed as a racing car and it went on to win at its second outing in the Grand Prix of Rome. Alongside the racing cars, development continued apace for a road-going version. This is how the 166 MM - the first Ferrari to win the Le Mans 24 Hours and also see use as a high-performance, road-going two-seater - was created. The history of the V12 front-engine Ferraris started here.
Barchetta is really a generic term. It’s the same as spyder or roadster. Typically any car without a top or side windows.