We use this in our Sprinter so I can drive like I do and not keep mopping up water off the van floor.  this thing works amazingly.  My expectations are far exceeded!  it stays put and we had no issues on our last drive down a washboard road to find camp.  If I had any criticism - I wish the bottom had a little more rigidity when carrying it around and would like to see one with a larger opening - our Husky / Dane is 115 lbs with a large mouth