The 550 Spyder was built in 1985 by Wise Motor Sports. The 550 was built as a track car that would also be street-able. Wise Motor Sports built the car to the following specs. The car was to be built around the original 550 Porsche Spyder with a number of improvements.
Max weight to be under 1200 LB
Car to be powered by a highly modified 1600cc Porsche engine HP to be over 140 HP
Car to have a five speed dog shift quick change Hewland transmission
Car to have Coni 300 series shocks all four corners
Car to have Tilton pedal assembly with brake balance bar
Car to have over size disk brakes with air duck cooling
Car fuel tank to be Aluminum with bladder
