As has already been highlighted it is better to quote the years as used by the manufacturer, rather than the actual year. So it seems that after September of each year Audi will refer to the model as being allocated to the following year – by example a Oct 2002 car is really a classified 2003 model.
Based upon this, the differences in models that exist range from 2000 to 2003, however rather than go into what has the larger fuel tank etc, etc, I would prefer to distinguish the differences in that the 2003 model has a fair chance of problems found in 2000 cars being fixed. On the basis of Audi not starting a war they dare not publish the exact changes made over the model duration, especially when by example 2000 & 2001 owners might be insisting that they had the new window regulators with revised software – or whatever.
I do appreciate that 2003 owners are experiencing technical problems, but the bottom line must surely be that a 2003 model offers the best of chances for trouble free motoring. Then again I’m sure 2004 will be better, but by then owners might be saying they thought the seat frames on 2000 models were the best.
Regards
John Disdale