How is it a part difference when they added airbags and other features and it didn’t increase the rating…? In those vehicles the driver is the crumble zone dude lmfao, always have been and that can’t change with their design. Fucking yeesh lmfao.
That car is still probably is at least twice the weight of the kei truck. It's arguably probably not crashing in the correct spot for the crumple zone of the impacting car to work appropriately, and if it is it still weighs significantly more than the kei truck meaning it's significantly less effective.
Perhaps go and find some parameters from this "supposed" test, and post them here so we can oggle at them.