You lost me as soon as I read "all manufacturers try to avoid covering warrantable items if they think they can get away with it." Not sure what your background is (automotively speaking), but in the/my service advisor world, we get paid either warranty or customer pay for work. Anything I can "legitimately" bill the manufacturer for, I certainly will. A no problem found is generally a lose/lose deal. That line of thinking runs right up there with people who think cash gets them a better deal buying a new car.
2003 Ford Mustang Mach 1 w/mods (street toy)
1966 Ford Mustang Coupe 289 w/5-spd (street toy)
2005 Ford Focus ST w/minor mods (my daily driver)
1998 Ford Ranger S-Cab Flareside 4X4 (another toy)
Kia...Making Home Town Buffet look classy!