Most of them are powered by a GT or TR 750 engine. One is powered by a very rare Hi-Tac TR500 engine. Barton engined sidecar too. Also a DKW triple sidecar.

TR750 engined sidecar

Hi-Tac Suzuki TR500

Hi-Tac

GT750 Suzi

GT/TR750 Suzi

Barton GT\TR750 Suzi

DKW two stroke triple sidecar racer