To cross reference the origins of the Comet-read the Wiki report of the Ford Falcon
Read the section called First Generation (1960-1963)
I really don't want to start an argument over all of this, maybe it falls under the ill-fated topic that Harry P. started about "Scale Model Inaccuracies" and how some thing gets lost between the real cars and our models?
when I put the AMT '67 Mustang chassis into the '61 Comet I had to cut it and add about an inch of length to get the proper wheel base.
The Mustang in '67 was a larger car than the first generation Comet and you would think it would have to be shortened rather then lengthened.
Although in the AMT/SMP days as with the real car world the Falcon and the Comet were both considered a compact while the Fairlane was considered a mid size.
Also remember a few short years earlier the Fairlane was a full size car.
I just want to have a healthy discussion about model cars and techniques. (period)