i've had my 3.2Q for a year now and can say i've aways wondered how good the quattro system is, because its kind of like a silent partner. last night when arriving home to find my whole street completely frozen solid, there was 40k's worth of mercedes in front of me trying without fail to get up the hill. after waiting for him to try 3 times and every time sliding back down to the bottom, I took immense pleasure in passing him and flying up first time - no problems at all.
so to sum up, no its not just a word on the end of the model inscription - quattro actually does work!!!!