I know the video you're talking about; the rex had tires that were like 3, 4 ft in diameter, right? That wasn't what my buddy was saying; the engine would be latitudinally mounted, keeping the car fwd. It would post MUCH higher numbers than any honda engine and the engine itself would cost ~900 for a rebuilt one. There will be extra expense for custom mounts if there isn't a kit already, but nonetheless, the bang for the buck would be extraordinary.