if you go to visit 28car.com, you will found that there's a lot of VW with aged 4-5yrs for sell. Why ? It's because the DSG gear box started come to have a gear box replacement problem.
My friends' brand new VW, BMW, all original and no modification. BMW oil leakage and electronic problem at 4th years (around 50000km). VW have electronic problem at the 2nd year; moreover, the environmental friendly plastic control panel for the Golf, melt after parking under sunlight in Summer time and he found that 80% of the model has the same problem, the plastics cannot stand for high temperature.
My car sales friend also told me, if you have money, better buy Japanese cars, he said Audi is the worst, more than 50% of the new Audi need to be fixed within the 1st year, electronic problems. He is a sales in Dai Chong.
HK weather is hot and wet which is not good for electronic parts, especially those European cars are designed but Europe where the weather condition is totally different from Hong Kong.
By the way, European cars are also cheap now but if you will consider reliability, better choose Japanese cars, most of the European cars cannot last for more than 5 years in which VW and Audi are even worse, many need to back to fix within the 1st years for electronic problems.