I have a BMW 520i 1991 Sedan.
A very reliable car until lately:
Due to hot days, car interior is coming off the doors - a very big problem with these cars - the adhesive just disintegrates. Obviously in Germany they do not get 40+ degrees days!
Also the fuel injection is having some issues. The car has no "get up and go". I think maybe this is because my mum puts normal unleaded into it rather than premium. That could just be coincidence
I will get the mechanic to look at it this week. - it does have a very throaty sound right now.
The car is a bit sluggish, but it is very safe and nice to drive.
We also have a 528i, 1998 model which has not had any problems apart from the airbag control unit malfunctioning and displaying the airbag warning light. That was fixed under warranty
Also, we have a 1992 Toyota Landcruiser (80 Series). It has done 250,000kms+ and is a great car. The head gasket has been replaced. The engine is start to chew up oil like it going out of fashion - after 300K we will either part ways with the car, or rebuild the engine and keep going. We have a family of six and a really big garden (buying a lot of plants + fertiliser etc), so it is a great car for us.