In the episode where the team heads to Arizona to take care of cattle rustlers they are surrounded by the military. When the van rams through the wall and heads for the water, it is a ford. Look at the taillights when you watch the van in each show. That and the wheels, rims give away what kind it is. They often use fords for stunts. Also perfectly rounded square taillights on the van mean its a newer episode and the total box square taillights mean its an older one. The fords have tall skinny taillights and thats how you can tell its a ford.