Date for new model introduction

[66FBCharger]

I was wondering about the day that the dealers would reveal the new models for that year,in the 60's and 70's. Was there one date that was used every year? I know production started on August 1st. Was the introduction day that the new models were revealed/announced Aug. 15th? Sept 1st? I'm just curious if all the big three introduced on the same date? Did the date change yearly? When did this tradition end?

[ODZKing]

I don't know that there was ever a "set date" for automakers to introduce new models.  As you know the 66 Charger was introduced during the superbowl in January.
Ford was famous for introducing cars mid year. 
Seems like it got earlier and earlier since the first Ford Model (whatever) was introduced in October (I have read).
Now they are all over the place.  Thing is now, they all LOOK THE SAME!!!!   

[Alaskan_TA]

It would depend some on the model year. The page at the link below is for the 1970 Barracuda / Cuda models, note the 'for release in newspapers' date;

http://www.hamtramck-historical.com/images/vintage-advertising/1970PlymouthPressRelease/b10%20pb-4%20page%201.jpg

By looking at the other Plymouth & Chrysler models in the same packet, you can see how the release dates were spread out;

http://www.hamtramck-historical.com/1970-CPI-Press-Release.shtml

[tan top]

 had these pictures saved ,   look at the picture release dates   

[John_Kunkel]

I always remember September 1 as "the day".

[ODZKing]

had these pictures saved ,   look at the picture release dates   

Yeah, TT, I was about to look for and scan the one I have for my 73.  I will get to it tonight, it says release August 24 on or about. Let me find that thing ... 

[tan top]

had these pictures saved ,   look at the picture release dates    

Yeah, TT, I was about to look for and scan the one I have for my 73.  I will get to it tonight, it says release August 24 on or about. Let me find that thing ...  

had these saved too ,  thought sure I had the 74 also  

[ODZKing]

here is mine

[68X426]

I always remember September 1 as "the day".

Me too.  It seemed that it was always the Labor Day weekend and new model introduction together.