The huge amount of crude oil coming from these sites mostly use freight trains for transport, and that supply boom has resulted in a shortage of railcars to carry other goods. According to The Windsor Star, North American crude oil transport by train has gone from 9,500 carloads in 2008 to 434,032 carloads in 2013. Making matters worse, some North American rail infrastructure is still damaged because of this year's harsh winter, and that's slowing things down even further.
Chrysler admits to The Star that it has had some delivery delays due to the freight train shortage. In the meantime, it's using more trucks to deliver its vehicles. Trucking is a far less economical solution, partially because a train can carry so many more units at one time, but alternatives are slim. The Windsor plant alone has a deal for 33 trucks to distribute the minivans around Canada and the Midwestern US.