Picture from the early 1970s. The car on the right is thought to be either a Rover 2000 or Austin 1800. The door handle looks ok for a Rover, but the door is the wrong shape. Handle wrong for the Austin.
Definitely Series 1 P6, specifically a 1968 model year onwards (nerdy point - earlier ones didn't have the spring-loaded cover over the lock) and could be a 2000 or a 3500.
Definitely Series 1 P6, specifically a 1968 model year onwards (nerdy point - earlier ones didn't have the spring-loaded cover over the lock) and could be a 2000 or a 3500.