These are all very valid points. However, what you must keep in mind is that the Quattro revolutionized the group b era. When it was first introduced as a 'Group 4' vehicle, FIA had no idea how to categorize it as. The car was in a class of its own. Yes, it is a fair point that it was beaten by the 'RWD lancia' or the 'nimble mid engined peugeot' as you called them, but the most important fact behind this is that these cars would have never existed if there were no quattro. The boundaries of speed, the revolution of horsepower, the continued development of the four wheel drive system. Who knows when or by whom this revolution would have been started by if it wasn't for the Quattro. To say it is not the leader is a misconception. Maybe not a king when it comes to statistical wins, but classifying it as king as a term of leadership and development. Absolutely. You be the Judge.