I have been running the OH turnpike for the past few weeks and find I am classified either class 1 or 2. I know it is based on the height of the van and was told the QC is what triggered it to be a class 2. No explanation as to how it could be a class 1 one day and a 2 the second day. I think my speed when approaching the ticket dispenser is the key. Drive fast up to the booth and I am class one. Go slow and I am class two. I will be trying it more often in the future, wonder if anyone else is getting classified two different classes. I am not in a sprinter, just a standard ford econline.