Thanks for taking the time to explain it. Might take me days to understand it but it's an interesting read. I'll tinker around and see if this brain still have what it takes.
If we could find this kind of website from every vehicle, then things would be easy, quite down there is section called radiator if you wish to play with same data (sometimes helps with figuring it out) there is my source which I'm using to put some data to Prasu: http://mkiv.supras.org.nz/specs.htm
Working on something. The hood turned out WAY better than I thought it would. --- Post updated --- a little more