Attached Link: Acadia's thread on importing Honda models

There are a couple ways to import the Honda models.

They can be imported directly into Poser part by part, but two of the import options need to be unchecked (Centered and Percent of Standard Figure Size). The parts will load at the correct sizes and locations in space to rebuild the object. I haven't tried it yet, but I would guess that the grouping tool could be used to combine the parts of the vehicles that need to be hooked together.  I'd have to dig up one of Geep's tutorials to see how to best rig a car. There wouldn't be too many parts that have to move (doors, wheels, and possibly hood or trunk depending on whether the vehicle has interior details worth showing).

The other is importing through PoseRay, which allows importing all the parts at one time and exporting as an Obj file. 

My visual indexes of Poser content are at http://www.sharecg.com/pf/rgagnon