Complex sentence: In September 1996, Art Zimmer, (who is no relation to the original Zimmer family) acquired the "Zimmer Motorcars" name and various Zimmer Motorcars Corporation materials and established the Zimmer Motor Car Club for Zimmer car owners.
Split into simpler sentences: In September 1996, Art Zimmer, (who is no relation to the original Zimmer family) became aware that an automobile had been manufactured which shared his surname. Shortly thereafter, he acquired the "Zimmer Motorcars" name and various Zimmer Motorcars Corporation materials and established the Zimmer Motor Car Club for Zimmer car owners.