Defining an Expression

I wish to propose the following:

"As large as sin" = The range of spatial displacement determined by the sequence of {Hummer > H2 > H3 > Lincoln Navigator}. Anything smaller than a Lincoln Navigator may be evaluated for appropriate inclusion on a context-sensitive individual basis.

A Morning Commute Note

The best thing about the Buick was not the fact that the wooden plank crudely bolted in place of a rear bumper was too wide, protruding noticeably on either side. The best thing was the fact that a license plate was screwed into the wooden plank, perfectly centered.

I admit this point is debatable. That the Buick had that extra bit of sporty lift and rims may reasonably be viewed as remarkable.