Well, obviously, we want all the technical data you can muster, because some of that might help gauge the effects of other types of vehicles, those with/without different mods, etc.
The technical data that you get from your one vehicle might help to lay ground for equations that will gauge the performance of this mod for others without actually employing it.
And, we like lots of numbers. And graphs. And plots, piecharts, graphical layouts, etc.
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"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"