Sounds like today is the worst day to sell my 1.6l diesel, but tomorrow will be worse.
In fact, the most desirable second hand cars (in Europe at least) are those form around mid '00s, as they had enough electronics to be relatively fuel efficient and safe, but still be reliable enough to not get you dragged to the dealership because one of the million electronics on board of the cars of today decided to have a bad day (modern cars a reliability nightmares, making out of warranty repairs super expensive, basically pushing people to old cars).