The Fidia was, like other Iso cars, powered by a Chevrolet V8 engine, and was quite quick off the line (0-60 in around 7 seconds). The body design was the work of Giorgetto Giugiaro (then at Ghia). The interior featured polished wood and hand-stitched leather. High development costs drove the purchase price higher than that of a Rolls-Royce. The Fidia's main competitors were other luxurious and sporty sedans like the Maserati Quattroporte.