What does a boat need to qualify as a classic?

Defintely agree with you. I played with the typical style elements of a bygone time to create a boat with the most possible aura of authenticity I cold achieve. Nevertheless I would not pass it off a a historic vessel.
And it certainly won´t influence the history of yacht design. So in that meaning the term "Classic" does not apply well.
But I consider it as a gesture of appreciation for the work of yesterdays brilliant designers like John Wells and Walter McInnis.

However, I think most people in the boating industry are too generous with the use of the term "classic" today. So I thought this might be worth discussing.

The term "classic" defintely applies to your boats, most probably all of them. the catboat is really cute.
I really could be jealous for your fine old Feadship, is it from the deVries-yard?
By the way,if you really can´t stand the temptation of installing a hardcover for the helm station I would do the bright wood version you showed in that other topic.
My boat was the first of my deigns that has been built (my wife say it would be the last as well or I´d have to take the divorce into the budget calculation for the next ), in a backyard in Germany.
Took me 6 years, with no paid hands at the job. Hull and deck are cold moulded wood/epoxy composite with a generous amount of glass on it.
The engines are pretty smll with only 165 HP each, but that showed to be sufficient to get 16 knots on the first test run in flat water (only 10m deep) so she should do about 18kn in open water, perhaps a little more if I play a little more with the props. Yes, a light and sleek hull hepls with getting a good fuel economy. 9 kn at about 1 liter per mile isn´t tht bad for 65ft.
Currently I am doing the documentation on stability and so on for a registrtion as a comercial plesurecraft to do charter workin the Baltic. No such convinient thing as a six-pack license over here! They are so annoyingly strict with the requirements you can almost have it classed a well. But that should give no problems.
My only concern at the moment is that I have to many project running at the moment. My son was born today, I´ll have to go to Greece for some time for planning a refit project for a customer before this month is over and I still have to get through that registration stuff with my boat before end of april. So no danger of getting bored for the next weeks.

Thanks all for the congratulations.

@ David:
Concerning your VanLent: I must admit that the roof looks perfectly right and youre doing a pretty good job on that project. Have you considered doing a rounded aft edge with that roof?
I think that might go pretty well with the heavy old school character of that boat and match the elegant play with curves perfectly. Concerning the bright finish of the roof sides, that would still be no problem if you would apply vacuum tech and veneers to the outside.

That old yawl is really stunning. I can easily understand you miss her. But certainly you can be proud of having saved her before handing the stewardship over to the next guy!

Your questions: Yes, I live in Germany, unfortunately a little too far away from the coast, in Bielefeld.
If you´re interested and can afford taking a few days off for seightseeing in the north of Germany I´d strongly recommend visiting the "Cap San Diego" (yes, the ship is still fully operational and a honorary member of the annual Hamburg harbour universary parade). But she rarely leaves her dock. The authentic cabins are availeabel for"ship and breakfast which could be an enjoyable alternative for a land-based hotel.
Other interesting ships are the Hamburg-based steamer "Schaarhörn", which is the former yacht of the Hamburg senate and occasionally offers trips. Then of course the steam-powered icebreaker "Stettin" which has a regular cruising schedule, best place might be the engine room watching the giant triple expansion steam engine diong its work.
Then there are some other steamers that are worth visiting: the paddle wheel coastal steamship Freya in Kiel which has a busy cruising schedule during summer for touristic tours and the coastal steam ship Alexandra in Flensburg. And you might want to visit the Maritime mueum in Bremerhaven at least once. Plan at least two days for that. The plans archive there is not public but you might visit it by appointment.
And, of course, if I am in Kiel when you get there I´d enjoy welcoming you onboard my not so historic boat for a bottle of wine and a good talk about life, boats and other silly things.

You´re referring to my boat, right? Can´t be a comment on David´s Feadship.

Well, concerning the sheerline, that´s absolutely authentic for that style and time. I can only remember two designers of these days tht didn´d build a straight sheerline for commuter style powerboat, one of them was Otto Lürssen who did some boats with a sheerlines that was falling down to the stern in a nice curve.
Concerning the hull form: I admit that I could have dared a little more flare forward, but what else looks wrong to you?
The proportions of the superstructure are absolutely correct from my point of view. Only the forward railing is obviously slightly too high. (I had to do that for legal resons because i want to do some charter work)