I would say VOLVO and MERCEDES. Especially volvo

 

I think german cars age very well, the old cars actually have something going for them style wise, can't quite put my finger on it.
I'd say Nissans don't age too well in general, but they weren't exactly setting standards when they were new either.
Hondas tend to age well, but I dunno, once they age they look really dated if that makes sense. Like the EG, looked great, looked great when the EK came out, but then when the 2000s hit, it just looks hella old now.

 

There's a difference between aged and still looks good. The E30 is aged. No one will looks at an E30 and go "I bet that's only five or ten years old". I don't think there's a hell of a lot of difference between brands. Anyone who pays any attention can guess pretty accurately the rough age of a vehicle based on styling. Why? Pretty much all '90s cars look like '90s cars, '80s like '80s, etc. Everyone copies everyone so cars really aren't all that distinct looking, and even if they are certain styling details give away the age (think, Mini Cooper before everyone was producing small boxy cars, it didn't look like anything else but it still had similar details).

Aside from porsche, it's a wash. The layman looking at a 996 and 997 would be hard pressed to differentiate them. Sure, if you lined them up next to each other he could tell, but just seeing one in passing? Not likely. Even the 993 is hard to tell at a quick glance. No body will confuse a 10 year anything else for the new version.

 

A pretty car will always be pretty. Worst offender would be GM.

 

Jaguar's models in general age very well. Some are still very good looking many years later. And some that I didn't like when new, now seem better than I once thought, as they age. Not all their cars, but many.

 

I would have to say Mercedes.

 

Anything Pontiac made looked like crap the day it was new. Aztec, Firechicken, Bonneville, Grand Am, Grand Prix.... all of them save for 68/69 FIrebird and vintage GTOs.

 

kinda like Acura??

 

I disagree. Many did look bad but the '96 Grand Prix was a good looking car. The G6 is nice and clean looking (an attribute Honda seems to have forgotten on the recent Accord). The Fiero is great looking even today. The 80's Firebird is good (when the doors are lined up). The Solstice is great. The G8 is good (though I could skip the nostrils).

I know some think I swing from a set of GM cues but I think some would swear GM is a pox. The reality is GM has had some great cars and some not so great cars and lots of so-so. However, so-so doesn't mean bad.

 

Ok... so of the 6 cars you've mentioned, only three have had to stand the test of time.

Fiero - 1984-1988 - I have a soft spot for this car, but its hardly aged well, particularly the interior - this comes from owning two.

Firebird - 1982-1992 - Not terrible and argueably one of their better designs so this one I agree with.

1996: Grand Prix - evidently you and I disagree on what "well aged" means.

So cheesy.

The rest: Too new to be relevant.
G6 - 2004
Solstice - 2006
G8 - 2008

Now its my turn.









Ribbed for her pleasure...




Lets not forget it's 80s BMW/Mercedes fighter... the graceful 6000. LOL

Again... Definately the most dated company with the longest run making dated/downright hideous cars.