I have a couple of question about the Quattro system... 1) Is it electronically controlled? 2) How many diffs are there? 3) What is the maximum amount of power that can be sent to each wheel/axle 4) Does the parking brake use the 4 discs or its own setup? All of the above questions concern a 99 A4 1.8TQ or similar. I would be interested in any Quattro system though. Thanks, Dan 99 A4 1.8TQMS K04 Santorin