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1.
The procedure performed by the M.E. (mechanical examiner) to assertain the reason your vehicle died.
Person 1: Wow! What happened to your car? It was working fine yesterday.

Person 2: I'm not sure, they are performing an autotopsy on it.
by Squaretumbleweed January 18, 2011
 
2.
in the modern setting the scavenging of abandoned vehicles
autosy-autotopsy seems clear enough on its own
by michael Bush September 27, 2007