Hmmm, Just because a 17 year old has a nice, brand new car, doesn't mean their parents are rich.
I bought a VY SS when I was SIXTEEN. Ive worked my arse off since I was 7, so I had enough money to buy it! The company I was working for when I finsihed year 12 closed down, so I couldn't afford to renew the insurance as I was out of the job, so I sold it and got a VZ ute and I am still only 18.
Some of us prefer to save our money, instead of spending it on useless **** like drugs, alcohol and trying to get laid!