This cutaway image of the Carrera 3.2 reveals, amongst other details the catalytic converter, an indication this was a North American, not European model.
History
Long regarded as the best entry-level air-cooled 911, the Carrera 3.2 remains highly desirable. It was the final evolution of the original torsion bar 911 built from 1964 to 1989. Visually the only significant change came in 1974 with the so-called ‘impact bumpers’ of the G series, but under the skin, improvements to performance, handling and economy came incrementally as Porsche steadily developed the 911 over two decades: the 1984 Carrera 3.2 was a very different 911 from both the original 1964 car and the first G series.
Engine
The flat six was conceived from the outset to be used in both production and competition cars and as such designed to be enlarged as well as tuned. From 1969 it grew in stages from its original 1991cc to the 3299cc of the 1977 930 Turbo as Zuffenhausen progressively increased bore and stroke.