Benzino's arrest for drug possession had nothing to do with pot being found in his flashy Maserati -- instead, he says the drugs were in the police car in which he got hauled off to jail.
TMZ obtained the police report from his Atlanta arrest, and it says after Benzino was placed in the back of the patrol car ... the police found a small amount of pot on the seat. Cops say he pot wasn't there before.
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