The 12-cyllinder, 65°V 5748cc engine with its 540 bhp at 7250 rpm delivers a not-insignificant 98 bhp more that the 5443cc unit used on the 456M.
The engine has been modified a little compared to that mounted on the 575M Maranello: performance has been tweaked and the fluid dynamics improved. In particular, a new, more permeable suction routing and two air intakes set at the sides of the central opening in the bumper, a new shape and resized exhaust system to reduce counter-pressure that ups the compression ratio to 11.2:1, the optimisation of the fluid dynamics of the internal conduits in the inlet tracts and exhaust porting are some of the main changes.

The refined and sporty interior recalls the light alloy structure of the 612 Scaglietti and visually emphasises the technological contents. The aluminium fittings, extracted in one piece or from sheet metal, are both a decorative and functional element.
Passengers, cocooned in the beautifully handcrafted, upholstered leather seats and interior, can relax in a cabin that exudes racy exclusivity. Life on board is made all the more appealing by the climate control system, the Bose™ digital 6-channel, radio-CD sound system, the automatic headlight on, rain sensors for the wipers and the volumetric alarm.

The 612 Scaglietti is the first 12-cylinder Ferrari built entirely in aluminium - both the chassis and body. Cutting edge technology has been used in its production and assembly, allowing the weight to be reduced by 40% while providing extremely rigid torsion. The weight distribution (46% front; 54% rear) has been carefully considered to provide a drive that is true to rear-engined vehicles while maintaining the enjoyment and ease of front engined models.
The chassis has a space frame construction. The structural elements are made up of aluminium (aluminium extrusions 38%), united with elements in alloy fused with sand (34%) - used as a closure.