There is an ad for a 1990 Corvette ZR-1 about 400 miles from my home right now.
It's white over a red interior and in great condition according to the seller who is asking about 30k usd obo. If i had the dough i would check it out and also buy it if its good.
Its a classic that goes 0-60 in 4.5 seconds, has a top speed of over 170mph, handles great, looks good, has a/c, cruise control... you name it!
I even have an old magazine article stating its as good as the testarossa and countach!
You can pick them up in nice shape for 25-30k right now but i think these will go up a lot in the next few years unfortunately.
So that's my number 1 prediction.
Lots of people say this M series BMW or that Mercedes will be collectible but I hate that Euro Trash.
Even as a german i share your opinion on euro cars being junk.
But we have a 1989 Mercedes 560 SEC and while it totally fails in the luxury department (comfy seats, suspension etc.) compared to my buddys 1990 lincoln mark VII and other american luxury cars of the time
it still is a pretty decent car and i'm sure it will go up in value a lot in the next 10 years. (Which is why i would not want to sell it right now)
But to be fair this car performs better on the autobahn than most us cars of the time in stock configuration.
Its also pretty reliable and the quality is there. You cant compare these old w126 with the new junk that they are selling today.