Rep Power: 0

Simply put, with enough funding and access to resources, any vehicle with a determined team could make an 'around-the-world' trip (where ever possible by land); however, if a group wanted to do the entire trip, visiting literally every (or as many as possible) countries along the way, using only one source of motive power (one company) and know that repairs and parts could be made/found any step along the way - for this type of trip, you need a Honda.

http://aroundtheworldinahonda.blogspot.ca/