it's all really preference, i've heard of the people with 11 inch corrado brakes on the front and corrado rear discs,, they all say it's totally over kill, i've got 10.1" scirocco front brakes and plan to stick mk3 rear drum brakes on, you can stick rear discs on these cars easily, but no one says it makes a difference, it's only for appearance, i think that a simple mk3 rear drum and scirocco 16v front brakes will make you plenty happy