Phate said:
So you can't even really afford it, can you? You are borrowing money to buy something that will instantly put you into negative equity the second you drive it away. You will nearly always owe more than the car is actually worth on the finance.
The only time when buying a new car makes sense is when its something with very low depreciation indeed, or you have so much money that really the depreciation is of no issue to you.
The Astra is not a low depreciation car and you are not loaded or you'd not be stringing yourself up with a finance deal in order to buy it.
It's a Vauxhall Astra. Now, to be fair, it's far from the worst car on the road. You certainly won't be driving around cursing it for being rubbish, but there are better cars out there, and there are Astras out there for considerably less money which wont slap you into negative equity straight away.
As for Vauxhall doing something right to sell so many, well they are, and that something is offering huge discount to fleet customers. This means they sell billions as company cars and after 3 years these then flood the used market further crucifying the used market. Ford sell more Focus's to private customers, ie people who actually spend their own money, FWIW.
Recommended course of action, in order of preference:
a) Realise that at the age of 18, a brand new Astra (Which everyone else on the road will simply assume is a hire car) is not the greatest thing to be blowing £15,000, considerably more money than you actually have, on and spend much less on something else
b) Spend that £15,000 on something else - something nearly new. Something, perhaps like an Audi A3 or similar on an 04 plate. Better car than the Astra, worth more than the Astra when you get sacked and realise you can't afford it/get bored with it and want to change it/something else happens.
c) Spend £10k or so on a nearly new Astra. You get your Astra but some other poor sod has lost £5k in a year.
I'm not going to tell you to spend the cash on a house deposit becuase house deposits are boring and I know it's a difficult thing to think about. You want a car, buy a car, but that doesn't mean you cant spend the money on a car in a far more financially savvy way.