Yeah, GTI rules! You really got close with this one and (as always) you've added an amazing amount of details. The rubber band you have used for the red stripe on the front grill (you did, didn't you?) is very clever. The only thing that doesn't work perfectly is the side view, especially the wheelbase (too short), the height of the roof section (top chop?) and the angle of the windscreen (too high) - see this photo: http://commons.wikimedia.org/wiki/File:1982_VW_Mk1_Golf_GTi_02.jpg - The rest is perfect. Anyway, great job (5/5)! :-))
Good shape nice use of bricks and one of the more accurate and obscure cars I've seen on here, one inkling I have however is that a mk1s rear lights were shorter (thinner however you will)and could do with being a brick shorter, not to detract from this top model :P
I always wanted to have one of these as my first car but had to settle for a Rover 214SLi instead: not in the same league. This build looks spot on to me, authentically complete with the VW badge missing from the front, stolen by Beastie Boys fans. Excellent!