The FNM Alfa Romeo 2300 is a Brazilian luxury sedan produced from 1974 to 1987. The general look of the new car was very similar to that of the Italian built Alfetta sedan, designed by Giuseppe Scarnati and first offered in Europe in 1972, although the Brazilian car was actually 41 centimetres (16 in) longer and 7 centimetres (2.8 in) wider than the Alfetta. Under the skin, the 2300 was based technically on the older Alfa Romeo 1900. The gear box of the 2300 was conventionally located adjacent to the engine and not (as with the Alfetta) across the rear axle. Like its Brazilian predecessor, the FNM 2000, the 2300 featured a four cylinder twin camshaft engine, now of 2310 cc with a claimed output of 140 hp (100 kW). A maximum speed of 170 km/h (106 mph) was claimed. For the 1985 model year the 2300 was renamed as "Alfa Romeo 85". This model was manufactured until November 1986.

Marketing opportunities were identified in Europe where Alfa Romeo's locally designed attempt to move upmarket had made little impact on the competition from Bavaria: the Brazilian Alfa Romeo was offered briefly in 1981 under the designation Alfa Rio and distributed by Alfa Romeo German. In addition around 600 of the cars were shipped to The Netherlands.