This, is if my memory serves me correctly during my time at a Ford dealership.
The Mk4 Cortina was a more squarish shape, they came with the 1.6L, 2L Pinto engines, an upmarket model with a German V6, they had square headlamps and a wrap round steel bumper with a plastic end that went as far as the wheel arches, they were not as wide as the Consul and Granada's.
The Mk4 Zephyr's were the last vehicles fitted with the Essex V4 and V6 engines.
That model Consul would have the 2L Pinto engine, but some did have a V6, the Granada's had the 2L Pinto and the V6, (which was the German design)
Alan