Well, guess this (srry for the quality, it is from a YouTube upload of a 1993 video - the car is unique and very misterious, it can be seen only here in this spec).
Actually a 1982 Gr.C car, converted by a privateer team to IMSA WSC spec in 1993 (IDK why didn't they get a newer car?) Your car: Porsche LMP2K?
Your car - Porsche LMP2000? About my car - nope, not an Osella. Used to be racing in the World Sportscar Championship in 1983 by the factory team, then raced in IMSA in 1985-1988 in IMSA Lights class. In 1985 used by a factory team, in 1986-1988 by numerous privateers, including the same which raced it in 1993. Raced in 1990 in Watkins Glen as an IMSA GTP, in 1991 raced as an IMSA Lights car at the Sebring 12 hours. In 1993, converted to a 1986-model (named other) spec, but retained the name. Used by a privateer in some IMSA races, including the Daytona 24 and the Sebring 12 through 1993. Raced at the Lights class in 1993, didn't prove well against the Spices, Kudzus and even the sole Fabcar Porsche. Converted to IMSA WSC in late 1993, used at the last IMSA GTP/Lights in Phoenix in 1993. Also raced at Mosport in 1995, being the last race.
As the previous discussion is pretty dead, try guessing this: Quite a common car, but somewhat disguised - and somewhat damaged.