[2] After ongoing success of inline-four engines in Formula One, Ferrari also employed those powerplants for their sports racing cars.

Enzo Ferrari was unhappy with replacing the smaller capacity V12 race cars with inline-engined racers and wanted to ensure the use of his beloved engine.

The inline-four engines produced a better low-end torque and the V12's were superior in higher revs and peak power output.

[3] The 250 Monza was powered by the three-litre version of the Colombo V12 engine of the similar specification as used in the 250 MM, developed a year earlier.

The single remaining chassis received a Scaglietti two-seater spyder body in the style of the 750 Monza to an Alfredo Ferrari design.

After a victorious debut race it was presented at the Amsterdam motor show, where it was sold to Hans Maasland of Netherlands.

When the car was damaged at the second heat race at Zandvoort, it was sent back to the factory where it received a new body made by Pinin Farina in their same style.

The fuel was fed by three quad-choke Weber 36IF/4C carburettors with the resulting maximum power output of 240 PS (177 kW; 237 hp) at 7200 rpm with 9:1 compression ratio.

[3][13][15] The front suspension was independent with unequal-length double wishbones, transverse leaf spring and Houdaille hydraulic shock absorbers.

[16][4] The Ferrari 250 Monza debuted at the 12 Hours of Hyères endurance race of 1954 and was driven by Maurice Trintignant and Luigi Piotti.

[17] They drove the Pinin Farina bodied car entered by Scuderia Ferrari, s/n 0420M, and won the race against smaller-engined 500 Mondial of Picard and Pozzi.

[19][6] Gerini then embarked solo on a series of races, winning Trofeo Sardo and scoring a second place overall at Bolzano-Mendola hillclimb.

[17] At the Circuito di Senigallia, later the same year, for the S+2.0 class, Gerino Gerini scored a second place representing Scuderia Guastalla.