I'm sure this has been addressed before...Why so many 4-door models being produced in 1:43 Scale?

That is a good question - in  the past people have wanted more 4-doors, all they ever produce are 2 doors or convertibles!!!  So maybe the tide has changed.

Also, 1/43 station wagons are now being produced, now that wagons in full scale seem to be more collectible...  Maybe that is related.

it will be interesting to see what others think...

My previous year's purchases -  8 2-door coupes, 4 convertibles, and 2 4-doors.  I guess I am bucking the trend! 

Licensing fees have nothing to with it.  America's obsession with 2-door hardtops & convertibles is NOT duplicated around the world; four doors were (are ) the favored body style.  To that end, many replicas of foreign cars are 4-doors.   Models of American "bread & butter cars"  were overlooked for decades - collectors now seek variety.   A vast collection of 2-doors & convertibles is nice, but....

Now consider that younger folks (Millennials and up ) prefer 4-doors, and if any are looking to collect, well...

I never buy 1:1 4-door vehicles.... but in model form I LOVE them!      Times & tastes have changed and I'm VERY glad to see model companies recognizing this.  After all, sales figures don't lie - 4-door & station wagon models experience VERY good sell-through rates. 

I don't know how licensing works. Maybe you get a license for a certain year, certain brand of car and perhaps the license applies to all body styles?

I'm a 2dr, station wagon and convertible guy at heart;  I would estimate about 5% of my collection are 4drs.  It is nice to see sedans and 4drhts being offered though as such variety is good for growing the hobby membership.

This topic reminds me to mention that I would love to see more 2dr. station wagons made in 1/43 scale.  I know Sergio is in the process of bringing us the '56 Pontiac Safari, which is awesome....maybe a '55 after that??  The Ford Ranch wagons of the 50s would be a welcome addition too. My absolute #1 pick/request from this category however is the '56 Ford Park Lane wagon!

My collection attempts to represent the  broad spectrum of automotive history over 100+ years.   There are many models in my collection that I would never had as 1:1 transportation such as all of the American land yachts with honking big engines.  I have tended to tread lightly on the earth with relatively minimal motor cars by American standards but that does not preclude representing them in miniature as part of history.  Here is a rare two door station wagon,  an Edsel Roundup  from 1958 by Minichamps.

Perhaps most of the 2-doors have already been modelled, and now attention turns to 4-doors?