http://www.2004.motorracetime.de/gal...dpm1020704.jpg
http://www.2004.motorracetime.de/gal...dpm1030204.jpg
These Opel Astra were doing some guest starts in ADAC Procar (called DPM back then) in 2004. They're certainly no true S2000, but I'm not exactly sure what they are. They are developed by Kissling, and I think they were usually used on the Nordschleife.
They were also driving in the ETCC field of Spa 2004, in the DPM Division (DPM cars joined the usual ETCC race back then).
I also have pictures from the ETCC race (the silver one with a proper rearwing), not sure about copyrights though, as the pictures were taken by the official ETCC photographers.
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The Ford Focus are developed by Hotfiel Motorsport.
There are also 2 versions of the Peugeot 307. One with two and one with four doors.
Oh, and if anyone remembers Brilliance, did they ever have a S2000 prototype?