Kuruma JDM Race Car: Miata Weight, Toyota FJ V6

The formula here is ancient and proven — strip the car down, drop in an engine from something heavier, and let physics do the rest. What makes the Kuruma worth paying attention to is that it applies this logic with a production V6 that's genuinely accessible, not an exotic or bespoke racing unit. That combination of low mass and a torquey, well-understood engine makes for a car that's fast on paper and probably easier to keep running than something purpose-built. It's a reminder that the most interesting performance machines often come from lateral thinking rather than big budgets.