I have been looking at bike racks lately. I've been very happy with the Thule double with tope tube hook. The padding and such doesn't leave marks and has been a great tool over the last couple of years. (
http://www.thule.com/en-us/us/products/carriers-and-racks/bike-carriers/hitch-mounted-bike-carriers/thule-doubletrack-2-bike-990xt-_-5776509 ) We have been looking for a new one and I found this swagman. (
http://www.swagman.net/product/quad-22 ) which I really like as it will do what my Thule does and lets me add two more bikes. We often tour with another couple so on the Van this would be a great setup for travel, I think .
So things I look at...
Will with mount without pushing down on fenders... check
is it safe for paint.. check
easy access to rear of vehicle not so much / NO if bikes are on it.
I've used hanging racks and without pipe insulation to protect the tubes they have not worked out well for me.
The other up right racks tend to need to come down about where my front rack is or onto of the fender to hold it securely
The downtime racks don't like my third water bottle cage.
Roof racks are just too too much trouble when connected and disconnecting the dyno hub a taking the wheel off.. yes I'm spoiled and lazy.
Note on the swagman my plan would be to mount lights on it for brake turn etc when four bikes are on there traveling.. it sticks out a long ways.
I haven't bought anything yet but overall looking at the wheel trays... the 2+2 approach etc I haven't found anything as solid and useful as the swagman..
Kelly