When I was a 17yr service bobby, on a cold and wet night, on foot patrol, I stopped a rather sporty car with a defective front light. The driver, on winding his window down, reluctantly, smirked at his vapid but gorgeous female companion. he looked at me with disdain, and said' Do you know who my father is?' I had to reply, 'No, but have you thought of asking your mother? She may recall his name'.
Even my Chief Super saw the humour when he called me in for a bollocking, he didn't like the Mayor, either.
Alas her mother probably had a lot to do with the brat's reaction - at least she apologised for her daughter's behaviour but then no doubt took the child home and grounded her for a whole day... oooooh!
IMO, the fact that the parent(s) even seriously contemplated such a "gift" tells us all we need to know about the nature of the "problem"!
Same principle (on a vastly greater scale!) as the "hair cut principle": new Year 7 (ie 11 year old) pupil arriving in school sporting expensive/ "trendy" hair style = trouble. Why? Because any parent daft enough to indulge an 11 year old in this way has long since lost the plot, and you have an egocentric brat on your hands.