The fixed-profile convertible variant of the 500 debuted at the Geneva Motor Show in March 2009 designated the 500C (C for Cabrio), historically recalling the fixed-profile convertible of the original 1957 Fiat 500 — as well as similar fixed-profile convertibles such as the Vespa 400 (1957), Citroën DS 3 (2013), Nissan Figaro (1991), Citroën 2CV (1948–1990) and the Nash Rambler Convertible "Landau" Coupe (1950).

The 500C features fully stamped body-side panels retaining the hatchback 500's profile (door frames, roof pillars and side windows) to increase structural rigidity, reduce scuttle shake, and retain side and curtain airbags — in trade for a less open experience than a fully pillarless convertible.
Weighing 40 kg (88 lbs) more than its hatchback counterpart, the 500C features a slightly longer windshield than the hatchback, with a concealed and reinforced upper structural cross-member; a stronger front cross-member behind the instrument panel; a rear strut on which the retracted roof folds; reinforced B-pillars; and the rear anti-roll bar setup from the Abarth, high-performance model.

The top itself is a  dual-layer, three-position power-retractable cloth top with a glass rear window,  electric defroster and an integrated color-matched spoiler with a center high-mounted stop lamp that remains visible with the top in any position.
The top retracts in three stages: over the two front passengers, overall four passengers (to the rear spoiler), and fully retracted with its stack folded behind the rear head restraints just above the rear cargo opening.
 The top is controlled either via the key remote or by open/close buttons at the windshield header adjacent to the interior ceiling light and retracts to the first two stages at speeds up to 60 km/h (37 mph), to its third stage at up to 50 mph — and is available in black, tan or red.

With its 50/50 split-fold rear seats in their upright position, the 500C rear cargo capacity is reduced from 9 cubic feet to 5.4 feet compared to the hatchback — offering 23.4 cubic feet cargo volume with the 50/50 split-fold rear seats folded.
 At its rear trunk lid, the 500C features "parallelogram" liftgate hinges.
 When the rear cargo lid is opened while top is fully lowered, the top automatically closes partly — for greater cargo access.
Because of limited rear visibility, 500C models are equipped with an ultrasonic rear park assist system to audibly indicate obstacles when backing.
The fixed-profile convertible variant of the 500 debuted at the Geneva Motor Show in March 2009 designated the 500C (C for Cabrio), historically recalling the fixed-profile convertible of the original 1957 Fiat 500 — as well as similar fixed-profile convertibles such as the Vespa 400 (1957), Citroën DS 3 (2013), Nissan Figaro (1991), Citroën 2CV (1948–1990) and the Nash Rambler Convertible "Landau" Coupe (1950).
The 500C features fully stamped body-side panels retaining the hatchback 500's profile (door frames, roof pillars and side windows) to increase structural rigidity, reduce scuttle shake, and retain side and curtain airbags — in trade for a less open experience than a fully pillarless convertible. Weighing 40 kg (88 lbs) more than its hatchback counterpart, the 500C features a slightly longer windshield than the hatchback, with a concealed and reinforced upper structural cross-member; a stronger front cross-member behind the instrument panel; a rear strut on which the retracted roof folds; reinforced B-pillars; and the rear anti-roll bar setup from the Abarth, high-performance model.
The top itself is a  dual-layer, three-position power-retractable cloth top with a glass rear window,  electric defroster and an integrated color-matched spoiler with a center high-mounted stop lamp that remains visible with the top in any position. The top retracts in three stages: over the two front passengers, overall four passengers (to the rear spoiler), and fully retracted with its stack folded behind the rear head restraints just above the rear cargo opening.  The top is controlled either via the key remote or by open/close buttons at the windshield header adjacent to the interior ceiling light and retracts to the first two stages at speeds up to 60 km/h (37 mph), to its third stage at up to 50 mph — and is available in black, tan or red.
With its 50/50 split-fold rear seats in their upright position, the 500C rear cargo capacity is reduced from 9 cubic feet to 5.4 feet compared to the hatchback — offering 23.4 cubic feet cargo volume with the 50/50 split-fold rear seats folded.  At its rear trunk lid, the 500C features "parallelogram" liftgate hinges.  When the rear cargo lid is opened while top is fully lowered, the top automatically closes partly — for greater cargo access. Because of limited rear visibility, 500C models are equipped with an ultrasonic rear park assist system to audibly indicate obstacles when backing.
Fiat 500 (2007)