Generations

OEM equipment

 * Note: The build date cutoff for 2001 to 2001.5 is inconsistent and sometimes arbitrary. Both '01 and '01.5 cars have been reported as 09/00 build.
 * Note: Manufacturer Year is inconsistent and sometimes arbitrary. See Notes below.
 * Note: It is a common misconception that 2001.5 introduced updated oil lines. There is no conclusive evidence of this.

North American Production numbers
2002 is build date of 06/01 to 07/01

B5 S4 Avant: Audi Import Figures (U.S. Market Only.)
Notes:
 * Audi did sell some B5/S4 Avants in 2000CY, but they were early '01MY models.
 * Audi is not able to differentiate between 2001MY and 2001.5 MY S4 Avants in their U.S. Market Import / Sales records.
 * Audi did not produce a 2003MY B5/S4 Avant. However, there were a few "left-over" 2002MY units sold in 2003CY.

Source: Audi's "Product Support Engineering" office in Auburn Hills, Michigan.

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AoA has confirmed the following "U.S. Import" figures for "Silver" (Exterior Paint Code 5B5B) B5/S4 Avants:

- B5/S5 Avants in Silver (Total 2001 & 2002 Models): 672 Vehicles.

- B5/S4 Avants in Silver with 6-Spd Manual (Total 2001 & 2002 Models): 399 Vehicles.

- B5/S4 Avants in Silver with 6-Spd Manual (2001 Model Year only): 358 Vehicles.

Of these 358 Silver 2001 B5/S4 Avant 6-Speed Manuals....

...24 were '01 B5/S4 Avant Silver 6-Spd Manuals with "Silver Interiors".

...51 were '01 B5/S4 Avant Silver 6-Spd Manuals with "2-Tone / Black & Silver Interiors".

...283 were '01 B5/S4 Avant Silver 6-Spd manuals with "Black Interiors".

Source: Audi's "Product Support Engineering" office in Auburn Hills, Michigan. (Silverarrow)