Man of Honour
If you have just one car - with 2 power train choices, at maximum you’d end up doing 2 interpolation groups, still are a lot of tests to get the data to interpolate (high, low, 14 degC, DPF regen).
So long as certain criteria are met, cars with common power train architectures fall in same families.
So long as certain criteria are met, cars with common power train architectures fall in same families.