i had a bright yellow 00 a4 with the 1.8t engine. i loved the car to death. had the 5 speed manual and was the best transmission i've used in any car i've ever driven. never had any problems of any kind. bought it with about 126K on the clock and it had all previous maintenance done at a audi dealer. timing belt and water pump changed twice.
even oil changes weren't that bad and with the quattro might even be better than my xj in the winter. blast to drive and i found it easy to do regular maintenance. i would be another one in the same condition in a heartbeat. only gave it up cause i found a bmw i have always wanted and got that for the daily driver.