The problem is what good is a reliability rate on a new car? How can they rate something they hasn't even been on the road long? I'm sure the surveys might be alright for those shopping for used cars, but I'd take it with a grain of salt for anything new. It's pretty much just them guessing, based off prior cars for anything new.
Reliability ratings don't change much from year to year.
If a car has been rated poorly for the past 10 years, and the current model has been in production for 4 years, I wouldn't expect it to suddenly become a reliable model.
One interesting note.
They had an article a few years ago about car reliability in general. Almost every brand has shown significant improvements over the past 20-30 years.
Short term reliability (like the first 2-3 years) is general good on most cars.
However, if you buy used cars or keep your cars for 10+ years, it's the long term reliability that matters. There is a significant difference between different brands and models of cars. Buying a model that shows long term reliability can save you a lot of money in repairs.
I drive my last car for over 10 years, and it was never in the shop other than for oil changes and tires. (I did my own brake job and replaced minor stuff like light bulbs and a relay myself).