Hmm, that's an interesting question BB. The quote pertains to automobiles. But there are exceptions to the rule. if it is a specialized utility vechicle (fire truck, etc.) then it might be granted an exception.
As for your gyroplane, I suppose you can take it apart and ship it as pieces. Sort of things for your workshop.
What kind of gyroplane do you have?
But not sure about the legalities of the matter. Maybe a flying club might be able to shed some light on the matter. Maybe not. Didn't we have a thread on private aircraft?
I found a link to a site in Chile that might be of interest.
http://www.ultrasport.cl/