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, cross-plane V8 engine with a bore of 80.0 mm and a stroke of only 64.5 mm and using SPICA (Società Pompe Iniezione Cassani & Affini) fuel injection that produced around , 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. 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.