Sounds like my old Cortina Estate that was 60% Mk4 and 40 % Mk 5. All Mk 4 bits were on left side which made it look completely different depending on which side I was overtaking on
Previous owner had had both LH doors replaced, from different colour cars (as well as the front NS wing) so in sequence it was red, green, silver and then the blue of the rest of the car. Biggest problem was the front door hinges did not quite fit the frame pin dimensions so the last owner had bodged a set of house door hinges into place, worked but the door rattled at speed, so I happily roped the door to the glove compartment and centre console.
Cam belt broke one day on the M4 and the car coasted quitly to a standstill. When the police finally arrived to 'push the car' with their landrover to Heston services, they would not let me steer, but allowed me to sit in the passenger seat, which meant I had to undo the rope to get in. And of course that had to be the time the top hinge failed and the door fell off in front of them. They were not impressed and gave the car the full inspection once it got to Heston