Apparently this is Honda’s CR-Z race car for the GT300 class. From the image you can tell it will be a mid-engine race car. The stand in engine is a V setup. Honda never has made a V8 engine for a passenger car, so my guess it is a V6. The only Honda V8s were made for F1 and Indy series racing.
Source: GT Channel via Minds-farm via Carscoop