You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "The Audi RS4 quattro is the top tier and highest performing version of some specific generations of the Audi A4 range of automobiles, it slots distinctly above the Audi S4, the original Audi S4, built from 1991 until which year?" whose answer is 1994.
Each document should contain about 30 words, and these documents should contain useful information.

Query: original Audi S4 production end year
Useful Output:

Doc 1: The B8 covers the S5 from 2008-2012 and the S4 from 2010-2012, while the B8.5 covers those same models from 2013-2016. audi-b8-s4-buyers-guide-
Doc 2: We're talking about the 2003/2007 S4 B6 and B7 generation cars. Not just how to buy one, but also why you should buy one and why you should buy
Doc 3: The Audi S6 Plus was only in production for 16 months. With just 952 in existence, it is the rarest and most desirable Audi C4 model. When the
Doc 4: The first Audi S4 in history was based on the 100 of the C4 series and was available with two engine options.
Doc 5: With over 275,000 A4s and S4s sold over an 8-year production run, the B8/B8.  Being a higher-end model, the S4 has innumerable small