This is the Porsche 911 S Type 915, a prototype four-seater from 1970. It never went into production, because the company decided it wasn't yet ready for a four-seater, and didn't want to compete with its own two-seater models.
June 8, 2011 4:00 AM PDT
Photo by: Daniel Terdiman/CNET
| Caption by: Daniel Terdiman
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