Interesting, but seams expensive for what it is. Modifiable wheel baskets would be better than needing fixed sizes.
Reminds me though of a rack I built.
Only cost about $50 in material. I put it in the back of my S-10 pickup and can take 4 bikes under a truck cap, so they aren't hanging off the back. My dad built one and put it in his trailer. Plus you can pull it out easily and stand bikes up if you go camping or something. Very handy.