SEMA is not ready for this 600 horsepower Porsche Cayenne tuned by the horsepower crazy swedes at Rinspeed. According to MLE , this 957 Porsche Cayenne will make its debut at the SEMA show courtesy of luxury tuner Jonari, the US importer for Rinspeed products for Porsche. Just what does this 600 horsepower beast feature?
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