The NASCAR Goody's Dash series was the Subcompact division of NASCAR. It began in the 80s, went to around 2000 or 2001, I believe. I only saw a few races, they were not televised much.
Technically, these are all on the wrong body. I don't know what kind of cars Ford or Chevrolet used, but the cars that are Grand Prixs here, were actually Grand Ams in real life. However, the tooling for them don't exist, for any brands, so Cup tooling was used. Close enough!