Why did Audi leave rallying?
You always hear people say Audi "dominated rallying" - but it doesn't appear that way to me after reading Jeremy Waltons "Quattro" book (which stops at '83/'84). From what I've read the 5-cyl 10v and the later 20v engines were plagued with reliability problems which took some time to iron out. So quite a few times the Audi's didn't finish. Plus there were accidents etc. too. It was only on snow, gravel, and British RAC which Audi dominated. Tarmac stuff like Corsica, rwd cars trounced Audi - hardly domination. Plus a couple of times, Audi went to rallies that their main competitors didn't attend, in order to get enough points to keep up or keep at the top in the championship.
Now, Lancia on the other hand, 1987 onwards won chamionship after championship, year after year - thats domination.