surf, have you ever seen a VX from behind or inside? The door is metal - you can't just remove the tire and it's support and be able to see. Check out the galleries for lots of pics.

Van eyes is the economical way to see almost down to the ground behind the VX or a good camera and screen. I have mine aimed to see 3' behind and with a wide angle lens of 130 degrees, I can see the lane on either side of me.