I think it just bothers the OCD guys that like consistency and standards. A 4cyl, a V6, V8, etc are all different measures of a cars engine size. There seems to be no problem that all auto manufacutes can agree upon these terms.

Seems the same to me. 4cyl, v6 or v8 has nothing to do with engine size. Some of the old 500cc v8 race engines were great. Small, little torque, but high reving and fast for the day.

Firearms guys have the same conversations about weapons. Many call a magazine for a semiautomatic weapon a clip, although it is not. A clip is a different mechanical way of holding cartridges. Many will have to inform someone who calls a revolver a pistol they are wrong. By most commonly accepted modern standards only a semiautomatic handgun is a pistol, although folks have been calling revolvers pistols for centuries. Fishing pole versus rod, bullet versus cartridge and many other commonly interchanged words make those of us who care about accuracy and details, cringe; for most of the rest of the world it don't mean a thing.