You might as well just have a sticker in the back window stating 'caution - old man's GTI'!
Conversly, it could mean that the owner has reached a stage in his driving life where he has amassed the experience, knowledge and wealth to buy some that is quicker and a cut above the basic GTI buyer. Someone who doesnt want the baseball cap, boy racer image usually ascoicated with GTI buyers and someone who has the financial clout to always buy new and have it properly maintained unlike some of the bodges we read about on forum.
There is always another side to the story.