Here's a link to an interesting article on work being done to make a microcontroller module to interface with automotive electronics.
Here's a quote from the article -
CULMINATE (CUstomized Laboratory using MIcrocontroller for New Automotive Technology Education) is a project now in development at Indiana State University's electronics and computer engineering department. The university aims to create a board with a microcontroller and common automotive sensing and control electronics that will allow component substitutions and other experimental activities to help students explore the principles behind automotive electronics design.
http://www.microcontrollercentral.com/author.asp?doc_id=252798&f_src=MicrocontrollerCentral_report