hi all . i have finaly decided to put my 1.9tdi a4 avant up for sale and purchase an a6 2.7tdi s line avant hopefully . now i would love a quattro as i have owned 2 in the past what i need to know is are the a6.s permanant quattro or do they have an haldex system . i will be looking for a manual for no particular reason other than i have read a lot of horror stories about the tiptronics and multitronics boxes are they realy that bad or is it just internet scaremongering . any advice would be very much appreciated