@Rage0329 makes a good point. People do tend to look at the past through rose-tinted spectacles and imagine everything was better, and that very much applies to cars. I enjoy driving older cars, but I've driven plenty of pretty poor ones too.
That said, I can still see where
@Slash is coming from. He even says in his first post that he recognises that modern cars are objectively very good.
I think it's the more intangible aspects. I certainly know from having tested older cars for features in the magazine that you tend to be prepared to overlook certain objective failings since an older car will obviously not be better than a newer one in certain areas, and it's unfair to compare something say, a quarter-century old with something that's brand new. We're inclined to see character in older things and tolerate their flaws, be it cars, architecture, or even people.
There are certain things that I think older cars are generally better at than newer ones. Visibility is one of the most important ones - while I understand that thicker pillars used today are primarily for safety, they compromise visibility, and it's usually compounded by the work of car stylists trying to make things look more dramatic. I can probably count the number of newer cars with genuinely good visibility I've driven in the last few years on one hand.
Older cars tend to be physically smaller too, which might be more of a benefit here in the UK than it is in the US say, but helps with everything from parking to having more space in your lane to play with on a twisty road. And while older cars certainly don't have a monopoly on control feedback, I'd say that of the older performance cars I've driven, that's almost always the case. Steering feedback, the response of the pedals, the feel of the shifter etc.
And I'd say most older cars have a better "secondary ride" quality than newer ones - their ability to absorb smaller-amplitude but higher-frequency road imperfections. That's mainly a function of softer springs and dampers and taller tyre sidewalls (and probably lighter bodies, which don't require the same compromise between ride and body control as heavier cars do).
In most other areas - safety, performance, grip, economy, braking, comfort, convenience, equipment etc - newer cars tend to be better.
And in others still, I think it's down to personal preference. Rage says he's not particularly fond of the styling of older cars. In contrast, I very much am - I do like modern car design, but I think older cars (and particularly ones from the 60s/70s, but plenty from the 80s and 90s too) are more beautiful and better-proportioned, and I'm very tired indeed of the aggression of new cars (which psychologically, I'm fairly certain reflects in the way people drive today too). Between an old and new Mustang, an old and new Golf, an old and new Ferrari, an old and new Mini, even an old and new entry-level Toyota like the Corolla, there's no contest for me.