Instruct: Classify a given Amazon review as either positive or negative.
Query: 911 history from the Guru

No living automotive author can match the elegance and technical depth of Paul Frere's writing. Accordingly, only Frere could produce such a book as this, dense with minute technical detail, yet balanced with a broad view of how Porsche designed, raced, and evolved the 911.The look on Frere's face as he sits in his own Carrera (in the color photograph section of the book) says it all: the 911 is a singular automobile, and this is the author to tell its story.