It could be pretty high on insurance. Im 23 next month and i passed 7 months ago. Im driving a 1.8t on a 2000 w plate and the cheapest price i got was £1900 on confused.com. But if you love the car youll find a way of paying for it. Another option is to start off with a MK2 and (try to) wait untill you have a years no claims untill you go for the 1.8t. (I couldnt wait!) Also on a confidence level mate, if your only just out of a 1.2 litre learner car and and you jump in the 1.8t you may find it a little scary.
I went from the learner car to 1.8 non gti mk2 and the difference in that was hard to adjust to and then to the 1.8t just 4 days ago, im a confident driver although still new but its still pretty hard to adjust to the power. Im not trying to put a downer on your choice so please dont take it that way, but theres a few things to consider being that its your first car.
If you do get it though, like conker said, scrapyards or cars being broken is the best bet for the mirror
