What is the mentality of people who say that BMW cars are bad?

People who say that BMW cars are not good are jealous because BMW, as a luxury car, has passed the test of time and is a classic old brand.

A friend of mine bought a BMW car. However, many people said that BMW cars are not good. My friends were very dismissive of this because most of them had never driven one. They own BMW cars, so they are all very jealous and deliberately try to hide BMW cars. Only people who have driven BMW know how good BMW is. It is very powerful and the environment is very comfortable. I think it is very good.