m_medium=facebook">"Auto Club Speedway race changed from 500 miles to 400 miles"</a>. Scene Daily<span class="reference-accessdate">. Retrieved 11 January 2011</span>.</span><span title="ctx_ver=Z39.88-2004&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AAuto+Club+400&amp;rft.aufirst=Bob&amp;rft.aulast=Pockrass&amp;rft.au=Pockrass%2C+Bob&amp;rft.btitle=Auto+Club+Speedway+race+changed+from+500+miles+to+400+miles&amp;rft.date=11+Janurayr+2011&amp;rft.genre=book&amp;rft_id=http%3A%2F%2Fwww.scenedaily.com%2Fnews%2Fa