whats the price of a set of 18" monza's and a good set of tyres?
........1k ?
Why not go for a set of black alloys and make a proper colour coded car 
Max, don't listen to Hurdy. I've seen black-on-black GTIs, they are not that impressive. Silver Monzas, on the other hand, will stand out nicely against the body color, and will draw a lot of attention. You'll be much better served by standard Monza 18"s