The Alfa Romeo Montreal was introduced as a concept car in 1967 at Expo 67, held in Montreal, Canada. Originally, the concept cars were displayed without any model name, but the public took to calling it The Montreal. It was a 2+2 coupe using the 1.6-litre engine of the Alfa Romeo Giulia TI and the short wheelbase chassis of the Alfa Romeo Giulia Sprint GT, with a body designed by Marcello Gandini at Bertone. One of the two concept cars built for Expo 67 is displayed in the Alfa Romeo Historical Museum in Arese, Italy, while the other is in museum storage.
The first production car, Tipo 105.64, was shown at the 1970 Geneva Motor Show and was quite different from the original, using a 2593 cc 90° dry-sump lubricated V8 engine with SPICA (Società Pompe Iniezione Cassani & Affini) fuel injection that produced around 200 PS (147 kW; 197 hp), coupled to a five-speed ZF manual gearbox and a limited-slip differential. This engine was derived from the 2-litre V8 used in the 33 Stradale and in the Tipo 33 sports prototype racer; its redline was set at 7,000 rpm, unheard of for a V8 at that time. The chassis and running gear of the production Montreal were taken from the Giulia GTV coupé and comprised double wishbone suspension with coil springs and dampers at the front and a live axle with limited slip differential at the rear.
Since the concept car was already unofficially known as The Montreal, Alfa Romeo kept the model name in production