One PDF is $25 for single use.  Yearly subscription at $50/year. This allows you to receive every update for the PDF over the next year.  This is a non-recurring fee, Automotivefamilytree will only charge you once.  This is for single use only, no distribution is allowed.  Please contact me for corporate discounts and students can receive this for free through your .edu email.  Contact: automotivetree@gmail.com