Mazda may be best known for popularizing the Wankel rotary engine, but Germany's NSU was one of the first companies to bring it to market.
AKA FrankenRex. Blown engine, natch. Currently disassembled from the firewall forward, for reconditioning before receiving a (hopefully) good engine and trans. Upgraded to GSL-SE underpinnings, Tokico blue shocks and struts.