
there are enough flat surfaces to fix the suction cups. Windshield, sidewindows, and so on! why does it have to horizontal? Vertical works great! you just need one oder two more cups!
Problem is I only have 2 cups. I'm afraid putting on the side will add more weight or pull to the suction cup.

I assume he wants horizontal as he wants a side or 3/4 view where as sticking it on the side of the van would only get you in front or behind. But yeah the windshield, hood, area above the windshield, and the roof if you get a step ladder would all be pretty good.
Yep, I'm looking for 3/4 view. I'm afraid the bus will look weird or out of shape if the suction cup is placed on top.