Designed by engineer Carlo Chiti, the ATS 2500 was a sports berlinetta equipped with a 2.5-liter V8 engine and around 210 horsepower. The bodywork was designed by Allemano. The ATS 2500 was also used in some competitions including the Targa Florio and the Mugello road circuit. A dozen of them were built between 1963 and 1964.