MkV is the fifth generation of the chassis. GTI is a variant built on it.
I don't think out antiquated C170 chassis is king of much anymore. When it first came out, Volkswagon conceded Ford had beat them at their own game. But, 1998 was a long time ago.
"It always takes longer than you expect, even when you take into account Hofstadter's Law."
Kariertes Hemd und Samenstau, ich studier' Maschienenbau.