Comfortably Lomb said:
Saab as a product has deteriorated terribly since being taken over by GM a few years ago. Today, instead of being the turbo-charged metal monsters that they were in the 90s, they've become less reliable and more expensive plastic Subarus. Volvo hasn't impoved either as they're now overpriced, far from their roots in appearance, and are plagued by electrical problems.
I don't know much about Vauxhall or Jaguar other than that Jaguars are now more reliable than they used to be. Although, to be fair, they were well known in the past for being at the far end of undependable.
I think it's awfully hard to say much good about American made cars when considering the level of reliability, luxury, safety, and performance that can be found in Japanese brands like Honda/Acura and Toyota/Lexus.
Saab was never well-known for its reliability, just for its power. And as they figure out more and more ways to get more and more power out of naturally aspirated engines, turbocharged I4 engines don't look as beefy as they used to. Monster horsepower in 1988 was 200 hp; monster horsepower today is 350+ hp, which just isn't happening in an I4 without serious trickery and expensive, fragile parts (incidentally, you can get the 9-3 with as much as 250 hp today, which is 100 hp more than a 1994 Saab 900 made). Further, virtually all cars are more reliable than they were 20 years ago. A 1997 Chevy should last at least 150K miles if you take care of it. A 1987 Chevy will often crap out at aroud 80K miles, especially if it's got one of those TBI 305's in it.
There's no rule of reliability of Japanese cars anymore than there's a general rule applying to Japanese electronics; Toyota and Honda are the only two that regularly come out on top of quality surveys and reliability statistics. Nissan, Subaru, Isuzu, and Mitsubishi all range from pretty good to pretty bad. Two quality brands do not a national rule make. The fact is all the brands are different, just as they are in the US. And while I'm mentioning US cars, the top 5 nameplates for dependability according to JD Power are Lexus, Porsche, Lincoln, Buick, and Cadillac. Rounding out the rest of the top 10 are Infiniti, Toyota, Mercury, Honda, and Acura. Subaru, Nissan, Mitsubishi, Suzuki, and Isuzu all rank well below average, while Ford, Chevrolet, and Chrysler are all above average (and very close to each other, and all way above the American-owned foreign nameplates).
Say what you will about popular stories and anecdotes, but these are actual statistics considered pretty reliable by the industry.
And who would buy an 80's-styled Volvo anymore other than hardcore Volvo enthusiasts?