 The reliability of these vehicles was hampered by early production mistakes and high maintenance costs — parts of the G-Lader can wear out quickly if unmaintained — which damaged the reputation of the supercharging concept.Volkswagen ended its experimentation with supercharged hot hatches at the end of the Polo 2F production run, due to high manufacturing costs and less than enthusiastic sales.The price was little less than that of the basic Golf GTI.