holy crapp!!
17year old and thinkin' of getting a FERRARI

?!?!?!
HA, ur talking like as if 20g's are peanuts
I really don't like to discourage you, its good that your reaching to your dream car, or ur dream life... but thats how everybody acts when they get their first true salary job and starts livin' alone(btw 16 isnt THAT much...I make 13/h pay for my phone and gas but do have some good money aside, but nothing to talk about...)
my advice, enjoy life and dont go to fast reaching for your dreams....ull regret it.
+ d*mn ....that would be ur second, third car??? take it easy man, get at least a 20k car , such as a new gti, civic, something more practicle, even though insurance on a 18 y.o on a NEW car, will.. kill u...
even rich people dont buy ferraris....