Complex sentence: In 1956, the very rare DKW Monza was put into small-scale production on a private initiative, with a sporting two-seater body of glassfiber on a standard F93 frame.
Split into simpler sentences: In 1956, the very rare DKW Monza was put into small-scale production on a private initiative. This was a sporting, two-seater body made of glassfiber mounted on a standard F93 frame.