@ericmattison81:
All you need to do is make a Bend deformer and rotate it 90 degress to the X axis.
Generally, by rotating the Bend deformer handle, you can tell it to which side you want it to bend.

@wuthoqquan:
Its a big car modelling video tutorial by Evermotion, which covers up lots of techniques and work arounds to modelling a realistic car.
https://www.evermotion.org/shop_display_item.php?item=21