The car includes a mix of active and passive aerodynamics to improve drag coefficient values over the F12berlinetta.

The rear diffuser of the 812 Superfast has active flaps that can open up at high speeds to reduce drag.

[16] The design is based on the F12berlinetta, with some new styling cues like full LED headlamps, air vents on the bonnet, quad circular taillights, and a body-colored rear diffuser.

The GTS weighs 75 kg (165 lb) more than the Superfast due to chassis reinforcing components but maintains equal performance.

The mechanical components including the engine remain the same as the Superfast except for the transmission which has shorter gear ratios to improve the car's response to throttle inputs.

The engine's high-pressure injection system reduces the number of particles that are emitted before the catalytic converter warms up.

Other features shared with the Superfast include the Manettino dial, side-slip angle control and variable steering weight.

The car has been aerodynamically refined in order to eliminate any turbulence arising from the loss of a fixed roof.

On May 5, 2021, Ferrari presented a limited production, track focused version of the 812 Superfast, called Competizione, this version being presented together with its drop-top variant, Competizione A (for Aperta, Ferrari's moniker for limited open top models, translating to "open" in Italian).

[22][needs update] As with other strictly limited models from Ferrari, these cars are allocated only to customers that meet certain criteria.

[23] The Omologata is the tenth “V12 engine in front position” project of the special “one-off” department since the 2009 Ferrari P 540 Superfast Aperta.

The bodywork is painted in ‘Rosso Passionale’ three-layer paintwork developed specifically for the car and the blue and white livery inspired by a legendary 1955 Ferrari 410 S.[25][26] At a private event held for customers and investors at the company's headquarters in Maranello, Italy in September 2018, Ferrari unveiled the first two models in its new Icona series of models.