1982 PORSCHE 928 PROTOTYPE LOT #413 - RESERVE 2000 BJCCA CCA SOLD FOR $46,640 Full Size OPTIONS COLOR - RED TRANS - MANUAL CYLINDERS - 8 ENGINE SIZE - 5L VIN - WPOJA0929CS821838 CONDITION - at the time of purchase, this 928 prototype was one of three built. estimated to cost over $3,000,000 to produce. this prototype has no top or exterior door handles. the simple and aerodynamic body was courtesy of ilex designs, while wingo auto was responsible for the rest of the design. with a stock 928 engine, the first heavier prototype was clocked at 91.47 in 15:032 seconds at a quarter mile drag strip. upon seeing the 928 prototype at a show in 1993, peter porsche expressed delight and amazement at the resemblance to the company's upcoming boxter, both of which were inspired by the 550 spyder of the 50's. featured in magazines.