The Rover SD1 and Rover 800 “fastback”. Granted, mine are ten years apart.. but production of them was only separated by a couple of years. Everything I’ve read suggests it’s a “complete coincidence” that the 800 looks just like an SD1 from the side.. but the SD1 was an amazingly popular car for how unreliable it was, so it’s not a surprise that a little influence crept in, I suppose.
The silver 800 is a 1991 827SLi.. one of the last 50 or so imported into the US. It’s got the end-of-shape body kit (most of which is still attached) and some other very bizarre options – like rear window blinds and one more window demister than you actually need. It’s also got 250k miles on it and the tappets rattle like anything when it’s cold.