Given the general size and shape of the interior of a generic car, the template seems to be a very predictable way of cleaning up the rear end. On any particular car you can get better results, but offering a template is much more constructive than shrugging and telling modders they're on their own and should simply design and test their own prototypes.
While citing a T-100 built to the template is nice, more relevant here is JulianEdgar's false horror at the Insight not meeting the template- and then
his addition of a spoiler to his own Insight. Which seems to have brought it closer to the template...
What would be more valuable would be an explanation of how he arrived at
that spoiler. What shorter or longer versions didn't do as well? Higher? Lower? How about a good profile pic to put against the template? Simply attacking the
Holy Template while seeming to apply it isn't a good method, especially if your position is one of data and testing. Presumably the testing that went into that (beautifully done) spoiler had one experimental version that met the template, or perhaps the final version does. Either one of those facts would have been a much more constructive argument than the ones we got.