I bought one of these vans when they first came out. It is not even close to 1:43. I agree with Chugman and Jacobpaul81, this is more like 1:64 scale. It measures 4" long, 1.5" wide and 1 3/8" high. The real life Chevy 1500 econoline is 18' 8" long (according to GM's website) versus this toy which measures to 16' long. The prototype is 6' 10" ground to roof versus 5' 6" high on this model.
Here are some photos to show you how it appears next to 1:43 scale vehicles from various model companies including First Response.