Last year I picked a 2007 issue of the Japanese magazine Racing On chronicling the complete history of the Japanese Touring Car Championship of 1990's. The story does a great job showing the brightly-colored, ground-scraping sedans that ran in the JTCC, but unfortunately JTCC info and photographs are almost non-existent on the internet. It's a shame because there were some incredible (and great-looking cars) that ran in this series.
The photo above shows a JTCC-spec Mazda Lantis running at MINE Circuit in 1994.
I'd say this fits into the monthly theme of looking at the non-mainstream, no?