Seems at least for quite a time already. Good old fully optioned muscle cars that were not high production. Cost not that much but usually take 20 or more years to demand decent money.

Lesser models of the same cars do little in comparison. You have to keep them low milage and in good shape though as restoration costs are already insane and not going to get any cheaper I feel.

Replacement parts availability for recient muscle cars may also taper off a lot faster.

The Star MBCA magazine had a nice set of experts' thoughts and opinions gathered at the Pebble Beach Classic some time ago. Some key guidelines to retain maximum resale values were original, original, original. Examples of over restoration actually diminishes restoration value. Worn, original examples are only lower in values than, original, unworn examples.

I don't know if this is still a thing but at one time it was fashionable to line up all the bolt heads or screws so they matched. For instance: You could open the hood of a 108 and see the bolts holding the fender on were all pointed in the same direction. They looked like a line of stars.

I found this to be distracting. Anyone who looks at cars on a close a basis as I would think many here do would also find this odd. The factory did not take the time to do this even on the 600's and it is hard to find a more handbuilt example of a recent Mercedes.

Higher gloss on the wood interior is also trendy today but I can remember seeing 109's on the showroom floor. The wood looked nice but it didn't knock your eyes out with the shine. It looked, like everything else, refined and subdued.

TylerH860, has emphasized the worn originals are definitely valuable in terms of collectability. I had always thought a decent restoration valuable, ahead of a worn original, but my thinking has changed on this.

Are you sure that the use of the word "future" is accurate?

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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

Well ... no one ever called me classy recently?

I always liked the Opel GT.

I saw one of those by the road the other day on my trip to South Dakota. It is remarkable now to see one in any condition. I have also seen one or more recently in nice condition....can't remember where though.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Investment or speculation? Make this distinction in your mind and do the wise thing.

I think the old BMW E24s (the "shark" coupe) have potential as well.

Might as well add; flip, to it. Then, there is personal enjoyment / pride of ownership and utility, as in using it as basic transportation. Investment can be speculation or vice versa.

Thanks guys for many good options you gave.
I think the P1800,Porsche 928/944 BMW 840/50 Jaguar XJS,Merc SL from early 70's-late 70's will be in the front of the pack.
Reminder I was asking about classics that arent that expensive to buy and will go up in value in the near future ( not which cars you like/love)
THANKS again

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1984 928S
1991 BMW 850 6 speed
1991 BMW 850 Automatic
1986 Mercedes 560 SEC
1988 BMW E30 Convertible manual

Some say early seventy monte carlos, some say mid 80s monte carlos ,anything past 88 is junk.If you can throw a chevy 350 in it a chevy guy will buy it.It makes good scense to also include any c-10 truck in the mix ,these will tend to be easily sellable vehicles if clean and unmolested factory colored ,theirs a lg fan base of good american steel.If you can find one under $3000. with all its parts, a datsun 240 z is like a gold brick,the chevy 350 still applies.

Not to mention the Y pipe for the Z's fits the euro gassers V-8 down pipes

Don't forget the last years of the 560SL, they are going up in value rapidly.

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1979 Black on Black, 300CD (sold), 1990 Black 300SE, Silver 1989 Volvo 780, 1988 300CE (vanished by the hands of a girlfriend), 1992 300CE (Rescue).