Toyota is officially back in the GT car game. The GR GT features Toyota’s first all-aluminum body frame, but the big headline is a twin-turbo 4.0L V-8 engine which will produce at least 641 hp. Remember, both the GR GT and its GT3 sibling are still “under-development prototypes.” Regardless, how’d they get that bang unit in such a low nose? With a bore and stroke of 87.5 x 83.1, the engine’s short stroke reduces overall engine height, while its “hot V” configuration puts a turbo in each engine b