Toyota is unlikely to install a V-8 engine in the new RAV4, which is designed around four-cylinder engines for efficiency.The video showcasing a V-8 engine in the plug-in hybrid version of the RAV4 may be for illustrative purposes and to generate interest from viewers.Speculation suggests Toyota may be teasing a new large-displacement engine for a road-legal supercar or high-end models like the Crown or LS.While the V-8 engine in the video may be a marketing tactic, there is potential for it to be integrated into other premium models as well.