The 1990 Volkswagen Jetta is a very well designed car. Its very practical and reliable. There's few modern gadgets that are prone to breaking and leaving you stranded. This car has very few electrical components compared to a new vehicle, so it is very inexpensive to maintain-no electric mirrors, door locks, windows to break-down. The spark plugs, oil, fuel and air filers are very simple to change yourself and the parts are inexpensive. The trunk is very large and tall for a smaller car, offering high utility. The seats and covers are very high quality and provide considerable adjustment and firm comfort compared to similar class US or Japanese cars. The downside is the poor quality paint - assembled Mexico. The German paint is three times better.
The seats, side visability, great brakes, and large trunk.
Add more padding in the center of the rear seat. Also, it needs a larger glove box.