How much can I rely upon a police report as evidence of what happened in an automobile accident?

(8) Public records and reports.  (A) To the extent not otherwise provided in (B), records, reports, statements, or data compilations in any form of a public office or agency setting forth its regularly conducted and regularly recorded activities, or matters observed pursuant to duty imposed by law and as to which there was a duty to report, or factual findings resulting from an investigation made pursuant to authority granted by law. (B) The following are not within this exception to the hearsay rule: (i) investigative reports by police and other law enforcement personnel; (ii) investigative reports prepared by or for a government, a public office or an agency when offered by it in a case in which it is a party; (iii) factual findings offered by the government in criminal cases; (iv) any matter as to which the sources of information or other circumstances indicate lack of trustworthiness.