The day Alfred Nobel combined the relatively innocuous components of nitrates and glycerol was a wondrous day for us all. On their own, they were fertilizer and fat,respectively; together, they could split the world in two.Porsche’s 911 Carrera and Cayman could represent those two elements: a fat man’s sports car and mid-range fertilizer for Porsche’s sales figures. But German tuning firm 9ff has blended them together in its Dortmund lab to produce the CR-42, a 911-engined Cayman so volatile it could convince George W. Bush to invade Germany.

Jan Fatthauer doesn’t work for Porsche. He owns 9ff, the tuning firm that produced the world’s fastest production car (for a while, at least), which recently turned attention to the Cayman. He fitted that LSD, and then couldn’t stop himself.

He went for a full engine transplant, grabbing the nearest 3.8-liter from a new Carrera S and boring the cylinders out from 99mm to 102mm. That encroached into the soft aluminum of the casing and required further reinforcement with Nikasil to stop the block melting after the first dose of throttle.

Read the rest of this article at European Car