O.S.C.A. (Officine Specializzate Costruzione Automobili—Fratelli Maserati S.p.A.) was an Italian manufacturer of racing and sports cars established 1947 in San Lazzaro di Savena, Bologna, by the Maserati brothers, and closed down in 1967.

In 2001 famous Italian designer Ercole Spada together with Shozo Fujita presented a prototype project - the 2500  GT (Dromos). It was a small lovely coupe powered by a flat-four, 16-valve 2.5-liter Subaru engine. Unfortunately, the car remained a one-off and the OSCA revival never went any further.