Older people complain less, that's a fact. I bet you could take the same group of cars and rank again by owner age and have a similar order. Younger people are harder on cars too. Is anyone going to dispute that?
Why don't you take a look at safety rankings and crash repair costs and get back to me.
The Buick owners I know are all old farts and have no idea what a good car is and no idea what is going on with their own cars either.
Funny, my BiL is about my age but retared when it comes to cars. He had a PkAve that blew an engine at 80k from IMG leak, he has no clue what caused it though...went and got another exact same car. None of his cars ever made it past 100k. He'll still say Buick is great out of insecurity. It's the psycological effect of not wanting to know you made a bad decision. (can't remember what that's called) Press him on the issue and he will retreat faster than a French tank. Still never owned an import and decries our cars (Hondas!) as (hold on)..."expensive to fix"! That's because some dirt-dumb mechanic told him that 20 years ago, not because he has a experience with them.
Our cars have 150-250k and look/drive better than his. Many had nothing more than exhaust, brakes and mounts. I think fuel pumps on the older VWs are a problem as well as control arms on the newer ones.
AS far as VWs, Mom's 1998 Passat has been awesome. It had nothing more than tune-ups, exhaust, secondary injection pump. That's IT! Interior is like new, paint is very good, ride is like being inside a cinderblock. Oh, the odo was replaced at 60k too.
These studies show what is wrong w/American cars. Mfgs "build to suit" buyers who are clueless and the cycle re-enforces itself. Ask these old farts (if they can hear you) how many import brands they have owned to compare to the 'ol Buick, lol. That alone should tell you everything. How valid is their opinion if they never owned a good car, err...import car.
It's common knowledge when people move from domestic appliances to imports the RARELY go back....and it has nothing to do w/"perception".