For sale at auction: Lot #710.2 - An all steel RSR body sitting on a 1990 C-4 all-wheel supercharged chassis with 17" Fuchs wheels provide excellent handling and old school looks. Countless hours went into this one-off build. All the convenience of a modern Porsche with the look of a 1973 RSR. Excellence magazine featured this RSR tribute and praised the build process. The sunroof and air conditioning provide comfort and the supercharged engine provides the fun.