Since getting our CR-V when we moved up to Frederick, we've been going with cultivars of Hondaceae. When we think we may exceed the cargo capacity of the CR-V or her RAV-4, Terri and I take the Odyssey up to Black Creek Nursery. Last time we took the RAV-4, but it was pretty tight with my 2 bales of potting mix!
This is somewhat relevant to this thread, as my viburnums have all traveled home in one of the above!