The Daina was available as a coupé or a convertible and featured custom bodies by Stabilimenti Farina, Bertone and other coachbuilders.

Like all Siata cars, the Daina was based on heavily modified Fiat mechanicals.

In this case it was the Fiat 1400; the frame was reinforced and shortened while the engine was developed with new head valves, new manifolds, carburetors, and on some models, Abarth exhaust systems.

[1] It featured independent front suspension and a live rear axle with coil springs all around, as well as 4-wheel drum brakes.

Initially a 3 "posti" (seats) coupe and Cabriolet (trasformabile) were designed and built in aluminium with steel doors by Stabilimenti Farina.