The two grand touring versions had the gear lever located in floor, and a higher output engine.

Carlo Felice Bianchi Anderloni of Carrozzeria Touring was asked by Alfa Romeo to create this showcar on the first chassis type 102.05, s/n 001.

The "Praho" name was derived from the name of the fishing boats popular in Thailand and affiliated with the cars concave rear window.

The cast iron block and aluminium head engine produced 105 PS (77 kW; 104 hp) at 5300 rpm in Berlina using a single downdraft Solex carburettor, while the version on the Sprint and Spider produced 115 PS (85 kW; 113 hp) at 5700 rpm with two Solex sidedraft carburettors and a higher compression ratio.

Tyres 165HR400 Pirelli Cinturato CA67 The four-door Berlina was manufactured by Alfa Romeo itself, while the Spider and Sprint were designed and bodied by independent coachbuilders, respectively Touring and Bertone.

[10] In 1966 two other models were introduced, the "Onça" coupe and the "2000 TiMB" (Turismo Internazionale Modello Brasile), which produced up to 160 PS (118 kW; 158 hp).

[10] The TiMB had a flat bonnet, coupled with a divided front bumper necessary to accommodate the now lower-mounted Alfa Romeo centre grille.

For 1971 the 2150 was facelifted, with a more squat version of the traditional Alfa Romeo grille which also allowed for a single-piece front bumper.