[3] The Aurelio Lampredi-designed engine develops an output of 125 PS (92 kW) and is capable of propelling the car to a top speed of 170 km/h (106 mph), with an average consumption of 15 litres per 100 kilometres (19 mpg‑imp; 16 mpg‑US).

The initial design used a three-litre engine developing 115 PS (85 kW); a 2.5-litre version with the same power was planned to be produced as well.

The chassis is cross-platform and supports the front wheel independent, transverse arms swinging, resilient rubber and hydraulic shock absorbers, while at the rear, independent suspension with hydraulic shock absorbers and longitudinal and transverse elements with elastic rubber.

Official presentation of the 1947–1948 Isotta Fraschini Tipo 8C Monterosa took place in October 1947 at the Paris Motor Show in the Grand Palais.

Only repeated restructuring of Isotta Fraschini's holding company made it possible to maintain its Italian plants and preserve a pair of prototypes to this day (one black coupe with a sunroof, and one two-tone white and dark-blue convertible).