Am seeing the Carfax value diminishing and therefore also it's reliability.....with the black market auto shops cosmetically fixing the weather/water/hail/etc. damaged vehicles so well....... from all areas of the country, and the "dealers/sellers" not taking on the responsibility "should" or "if" the vehicle results in a "fixed/reconditioned" car/truck, I'll not be purchasing anything even with the Carfax guarantee and/or report. ""YOU MUST"" somehow.....be it a milliamp reading of each vehicles electrical system to determine "if" corrosion is present, but not enough to detect from on-board systems, something "must be" done right now, or I see Carfax quickly becoming irrelevant. Thanks for listening. Larry