Just checked in to the code base is a new feature, non AJAX mode. This is tagged in vaf-1.4.0-beta3, the latest beta build.
In this update I introduced non AJAX mode. This will serialize the hierarchy of vehicles into a javascript array. This may or may not be desirable for all stores. The important thing is now you have the choice.
In non AJAX mode you are adding a significant amount of KB to your page if you have many vehicles. It may be the case you have too many vehicles to use this new mode.
The default behavior has been and always will be (for all we know) AJAX mode. In this mode your page is not slowed down by a huge array of vehicles. Data is spooled in specifically only when it is needed, although at the cost of a split second “loading” delay.
The choice is yours. Change back and forth by simply changing the configuration option. Let me know of any suggestions for this feature.