The restoration and rebuilding of the mysterious and unique 1934/39 SEFAC Grand Prix racing car was entrusted to Classic Job. The complex 2600 cc parallel-8 engine with supercharger (supercharger) was completely rebuilt and modified to function perfectly by Classic Job. The parallel eight-cylinder has two four-cylinder banks placed side by side on a joint crankcase. The crankshafts are connected by gears and rotate in opposite directions. Both four-cylinder banks have double overhead camshafts. Many special parts had to be designed and manufactured. The process of restoration, technical development, parts manufacturing, rebuilding and extensive testing took several years. The restoration was completed in January 2022.