This is the crux of my question. It seems that it may be due to some combination of these:
Psychological effects, including magical thinking such as believing that the act of titling a car and driving it 50 feet causes much more wear and tear than weeks of test drives and sitting on the lot in rain, storm, and snow.
Warranties that lose value upon transfer.
A fear (justified or not) that a person selling a car that they own is likely to know something negative about the car that you don’t.
Why do warranties do this? Other than “It’s always been done that way and everyone else is doing it”, does it provide substantial value to the carmakers?
I suppose? There’s no direct gain for the carmaker if they provide warranties on used cars. In the long run, that might drive sales (if they make the second owner happy). It’ll also boost resale value, which will eventually help increase the new car sale price. Plus better resale price makes leasing more profitable. In the mean time, warranty repairs on used cars will cost a lot of money – and that last year of warranty is probably the most expensive. Some bean counters must have crunched the numbers and determined that the benefits just weren’t worth the costs.
They don’t. The majority of new car warranties are fully transferable and are largely the same length for the same class - Dodge and Toyota get 3 year/36k bumper to bumper and 5 year/60k powertrain, luxury nameplates like Cadillac, BMW, Audi, Mercedes etc get 4 year/60k BtB. There are some minor differences - Chevy offers 5 years/100k powertrain, Lexus 6 years/70k.
The exceptions are Hyundai/Kia and Mitsubishi. Both offer standard warranties that are quite a bit longer than the industry standard - 5 years/60k BtB and 10 years/100k powertrain, but are limited in transferability- i.e. if you are the second owner the powertrain warranty goes back to the industry standard 5 years instead of 10 years for the first owner. For a while in 2008-9 Chrysler also offered a lifetime powertrain warranty which was similarly not transferable.
Maybe lazybratche was only looking at Hyundais and Mitsubishis, for it is hard to see how he reached his conclusion otherwise.
Yeah, my mistake – kids, this is why you shouldn’t rely on small N! Hyundai was the most dramatic example I was thinking of. I do seem to remember from my recent shopping that another company’s warranty (Ford? Mazda?) would start from the manufacture date (rather than the purchase date) for the second owner. But I’m not finding anything to readily back me up…