Hacked a Car
Published a study
Wrote a Research Paper
+1
Experimental Security Analysis of a Modern Automobile

Karl Koscher, Alexei Czeskis, Franziska Roesner, Shwetak Patel, Tadayoshi Kohno, Stephen Checkoway, Damon McCoy, Brian Kantor, Danny Anderson, Hovav Shacham, Stefan Savage.
IEEE Symposium on Security and Privacy, Oakland, CA, May 16–19, 2010.

The full paper is available in PDF form here: PDF. (FAQ)