Answer
The air between me and the truck is now flowing through narrower opening and hence flowing faster. So, there is reduced pressure in the space between me and the truck. This results in difference in pressure forcing both me and th truck towards one another. Since mass of truck is much more than my car, usually I should feel the effect.
Work Step by Step
The air between me and the truck is now flowing through narrower opening and hence flowing faster. So, there is reduced pressure in the space between me and the truck. This results in difference in pressure forcing both me and th truck towards one another. Since mass of truck is much more than my car, usually I should feel the effect.